what type of essay builds an evidence based argument

Developing Evidence-Based Arguments from Texts

About this Strategy Guide

This guide provides teachers with strategies for helping students understand the differences between persuasive writing and evidence-based argumentation. Students become familiar with the basic components of an argument and then develop their understanding by analyzing evidence-based arguments about texts. Students then generate evidence-based arguments of texts using a variety of resources. Links to related resources and additional classroom strategies are also provided.

Research Basis

Strategy in practice, related resources.

Hillocks (2010) contends that argument is “at the heart of critical thinking and academic discourse, the kind of writing students need to know for success in college” (p. 25). He points out that “many teachers begin to teach some version of argument with the writing of a thesis statement, [but] in reality, good argument begins with looking at the data that are likely to become the evidence in an argument and that give rise to a thesis statement or major claim” (p. 26).  Students need an understanding of the components of argument and the process through which careful examination of textual evidence becomes the beginnings of a claim about text.

• Begin by helping students understand the differences between persuasive writing and evidence-based argumentation: persuasion and argument share the goal of asserting a claim and trying to convince a reader or audience of its validity, but persuasion relies on a broader range of possible support. While argumentation tends to focus on logic supported by verifiable examples and facts, persuasion can use unverifiable personal anecdotes and a more apparent emotional appeal to make its case. Additionally, in persuasion, the claim usually comes first; then the persuader builds a case to convince a particular audience to think or feel the same way. Evidence-based argument builds the case for its claim out of available evidence. Solid understanding of the material at hand, therefore, is necessary in order to argue effectively. This printable resource provides further examples of the differences between persuasive and argumentative writing.
• One way to help students see this distinction is to offer a topic and two stances on it: one persuasive and one argumentative. Trying to convince your friend to see a particular movie with you is likely persuasion. Sure, you may use some evidence from the movie to back up your claim, but you may also threaten to get upset with him or her if he or she refuses—or you may offer to buy the popcorn if he or she agrees to go. Making the argument for why a movie is better (or worse) than the book it’s based on would be more argumentative, relying on analysis of examples from both works to build a case. Consider using resources from the ReadWriteThink lesson plan Argument, Persuasion, or Propaganda: Analyzing World War II Posters
• The claim (that typically answers the question: “What do I think?”)
• The reasons (that typically answer the question: “Why do I think this?”)
• The evidence (that typically answers the question: “How do I know this is the case?”).
• Deepen students’ understanding of the components of argument by analyzing evidence-based arguments about texts. Project, for example, this essay on Gertrude in Hamlet and ask students to identify the claim, reasons, and evidence. Ask students to clarify what makes this kind of text an argument as opposed to persuasion. What might a persuasive take on the character of Gertrude sound like? (You may also wish to point out the absence of a counterargument in this example. Challenge students to offer one.)
• Point out that even though the claim comes first in the sample essay, the writer of the essay likely did not start there. Rather, he or she arrived at the claim as a result of careful reading of and thinking about the text. Share with students that evidence-based writing about texts always begins with close reading. See Close Reading of Literary Texts strategy guide for additional information.
• Guide students through the process of generating an evidence-based argument of a text by using the Designing an Evidence-based Argument Handout. Decide on an area of focus (such as the development of a particular character) and using a short text, jot down details or phrases related to that focus in the first space on the chart. After reading and some time for discussion of the character, have students look at the evidence and notice any patterns. Record these in the second space. Work with the students to narrow the patterns to a manageable list and re-read the text, this time looking for more instances of the pattern that you may have missed before you were looking for it. Add these references to the list.
• Use the evidence and patterns to formulate a claim in the last box. Point out to students that most texts can support multiple (sometimes even competing) claims, so they are not looking for the “one right thing” to say about the text, but they should strive to say something that has plenty of evidence to support it, but is not immediately self-evident. Claims can also be more or less complex, such as an outright claim (The character is X trait) as opposed to a complex claim (Although the character is X trait, he is also Y trait). For examples of development of a claim (a thesis is a type of claim), see the Developing a Thesis Handout for additional guidance on this point.
• Modeling Academic Writing Through Scholarly Article Presentations
• And I Quote
• Have students use the Evidence-Based Argument Checklist to revise and strengthen their writing.

More Ideas to Try

• This Strategy Guide focuses on making claims about text, with a focus on literary interpretation. The basic tenets of the guide, however, can apply to argumentation in multiple disciplines—e.g., a response to a Document-Based Question in social science, a lab report in science.
• For every argumentative claim that students develop for a text, have them try writing a persuasive claim about the text to continue building an understanding of their difference.
• After students have drafted an evidence-based argument, ask them to choose an alternative claim or a counterclaim to be sure their original claim is argumentative.
• Have students use the Evidence-Based Argument checklist to offer feedback to one another.
• Lesson Plans
• Professional Library
• Student Interactives
• Strategy Guides

Students prepare an already published scholarly article for presentation, with an emphasis on identification of the author's thesis and argument structure.

While drafting a literary analysis essay (or another type of argument) of their own, students work in pairs to investigate advice for writing conclusions and to analyze conclusions of sample essays. They then draft two conclusions for their essay, select one, and reflect on what they have learned through the process.

The Essay Map is an interactive graphic organizer that enables students to organize and outline their ideas for an informational, definitional, or descriptive essay.

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How to Write a Standout Argumentative Essay

An argumentative essay is a piece of writing that uses factual evidence and logical support to convince the reader of a certain way of thinking. Although many types of essays aim at persuading the reader to believe a specific point of view, argumentative essays rely heavily on hard evidence, drawing on other studies and sources to prove their argument is best. 

Don’t let the name fool you: Argumentative essays don’t have to be aggressive or combative. Rather, it gets its name from the style of arguing, whereby the writer presents sufficient research to both support their own claim and invalidate opposing perspectives. When you’re writing an argumentative essay, remember that the goal is to show that your thesis is the only logical conclusion. 

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Argumentative essays are only as good as their argument, and structuring good arguments requires a little more than just being stubborn (even if it helps!). Below, we run through the most useful techniques for writing the perfect argumentative essay. But don’t take our word for it—our evidence speaks for itself! 

What is an argumentative essay? 

Like persuasive essays and other types of essays , the point of argumentative essays is to convince the reader of a particular point of view. What makes an essay argumentative is the method of convincing: An argumentative essay uses fact-based evidence and unquestionable logic to prove that its thesis is true. 

Persuasive essays do this, too, but tend to be more emotional and less formal . Argumentative essays focus more on concrete empirical data, whereas persuasive essays appeal more to the reader’s emotions. In other words, argumentative essays favor quantitative support, while persuasive essays favor qualitative support. 

Likewise, it’s easy to confuse argumentative essays with expository essays , which rely heavily on fact-based evidence and copious research. The main difference is bias : Argumentative essays presume one point of view is correct, whereas expository essays usually present all sides of the argument and leave it to the reader to make up their own mind. 

Another distinction of argumentative essays is that the thesis is not obvious . It usually has strong enough opposition to necessitate an explanation of why it’s wrong. For example, “the sky is blue on a sunny day” would be an awful thesis for an argumentative essay. Not only would it be redundant, but also far too simplistic: Your evidence may be “look outside,” and that’d be the end of it! 

The idea is that an argumentative essay leaves no doubt that its thesis is accurate, usually by disproving or invalidating opposing theories. That’s why argumentative essays don’t just talk about the writer’s own thesis but discuss other contradicting points of view as well. It’s hard to name one perspective as “true” if you’re ignoring all the others. 

Basic argumentative essay structure

Because your entire argumentative essay depends on how well you present your case, your essay structure is crucial. To make matters worse, the structure of argumentative essays is a little more involved than those of other essay types because you also have to address other points of view. This alone leads to even more considerations, like whose argument to address first, and at what point to introduce key evidence. 

Let’s start with the most basic argumentative essay structure: the simple five-paragraph format that suits most short essays. 

• Your first paragraph is your introduction , which clearly presents your thesis, sets up the rest of the essay, and maybe even adds a little intrigue. 
• Your second, third, and fourth paragraphs are your body, where you present your arguments and evidence, as well as refute opposing arguments. Each paragraph should focus on either showcasing one piece of supporting evidence or disproving one contradictory opinion. 
• Your fifth and final paragraph is your conclusion , where you revisit your thesis in the context of all preceding evidence and succinctly wrap up everything. 

This simple structure serves you well in a pinch, especially for timed essays that are part of a test. However, advanced essays require more detailed structures, especially if they have a length requirement of over five paragraphs. 

Advanced argumentative essay structure

Some essays need to support more complicated arguments and more definitive rebuttals than normal. In these cases, the three major formats below should serve your argumentative essay for a variety of needs. 

Aristotelian (Classic)

When to use it: making straightforward arguments

The Aristotelian or classic argument is a default structure for a clear argument, more like an extension of the simple five-paragraph structure above. It draws on credibility ( ethos ), emotion ( pathos ), and reasoning ( logos ) to prove its points, all of which can be adapted for virtually any argument. In form, it follows a direct and logical path: 

1 Introduce the problem.

2 Explain your perspective.

3 Explain your opponent’s perspective. Refute their points one-by-one as you go. 

4 Present your evidence.

5 Conclude your argument.

When to use it: presenting complex issues with no clear truths or when your thesis is a rebuttal or counterargument. 

The Toulmin method was developed to analyze arguments themselves, so it makes sense to use it for essays. Because it’s steeped in logic and deep analysis, this approach best suits complicated issues that need unraveling, but also works well for refuting an opposing point of view piece by piece. 

In form, it includes six main areas, but you’re free to organize them in whatever order works best for your essay. Keep in mind that your claim can itself be a rebuttal of another argument, so your entire essay could be disproving another thesis rather than presenting your own. 

1   Claim: your thesis or argument, stated clearly

2   Reasons: your evidence, including data or generally accepted facts

3   Warrant: the connection between your claim and reasons (requiring you to state assumptions explicitly so there’s no confusion)

4   Backing: additional evidence to support your claim

5   Qualifier: the limits to your own claim, including concessions

6   Rebuttal: addressing opposing viewpoints and criticisms of your claim

When to use it: showing both sides of an argument as valid or when presenting to a mixed audience.

The Rogerian method is simply a middle-ground approach, where you acknowledge the validity of both your thesis and the opposition’s viewpoint. It’s the least confrontational and most respectful, which helps in convincing readers who are naturally biased against your main claim. In form, it follows a five-step structure: 

2 Explain your opponent’s perspective first. Validate their points when correct. 

3 Explain your perspective. 

4 Bring both sides together. Present a middle ground where both viewpoints coexist. 

5 Conclude your (balanced) argument.

How to write a good thesis

The thesis, or argument, is the cornerstone of any good essay. If your thesis is weak or full of holes, not even a perfect essay structure can save you. 

The thesis itself should be the one takeaway you want your readers to leave with. What are you trying to convince them of, or what do you want them to remember after reading? Knowing this informs all other aspects of writing your essay, including the best structure and format, not to mention which evidence to collect. 

For starters, choose a topic you feel strongly about (if it’s not already assigned). It helps if your argument is specific; having a broad or general argument means more facets to examine, which can make for a wordy essay. 

It also helps to consider your audience. You don’t always have to tell readers what they want to hear, but their biases should influence how you write your essay, including your wording and how much credit to give the opposition. 

Above all, choose a thesis with sufficient evidence. Argumentative essays thrive on factual proof from credible sources, and you don’t want to waste time searching for data that doesn’t exist. If you can’t find enough facts to back up your thesis, maybe you shouldn’t argue that point in the first place. 

How to write an argumentative essay: the writing process

Argumentative essays follow the same recommended writing process as other kinds of writing, albeit with more emphasis on researching and preparing. Here’s a brief overview of how to adapt the process for argumentative essays: 

1   Brainstorming: If your argument is not provided in the assignment, take some time to think up a good thesis based on our guidelines above. 

2   Preparing: This phase is for collecting all the evidence going into your essay, as well as writing an outline . Because proof is key to argumentative essays, set aside ample time for research until you have all the support you need. It’s also a good time to outline your essay, answering questions like when and how to discuss opposing viewpoints. 

3   Drafting: Write a rough draft of your essay. It helps to include any data and direct quotes as early as possible, especially with argumentative essays that often cite outside sources. 

4   Revising: Polish your rough draft, optimize word choice, and restructure your arguments if necessary. Make sure your language is clear and appropriate for the reader, and double-check that you effectively made all your points and rebuttals. 

5   Proofreading : Go through your draft and focus exclusively on fixing mistakes. If you’re not confident in your grammar skills or diction, use Grammarly . 

Although optional, it always helps to have a fresh set of eyes on your essays before finalizing it. See if your argument is strong enough to convince your friends!

Argumentative essay writing tips

Our tips for writing better essays apply just as well to argumentative essays as any others, so that’s the best place to start if you’re looking for additional guidance. For tips specific to argumentative essays, try these: 

Support your argument with concrete facts

Although similar to persuasive essays, argumentative essays are in some ways the exact opposite. While persuasive essays appeal to the reader’s emotions, argumentative essays appeal to the reader’s reason. That’s why hard facts work best. 

Do plenty of research until you have enough data to support each of your main points. Feel free to cite other sources or studies to improve your credibility as well. Try to withhold your personal opinions and feelings as much as possible—let your evidence speak for you. 

Be proactive about language

In an argumentative essay, tone and style are more important than you may think, especially if you’re criticizing another person’s perspective. Be respectful when choosing your words and phrasing. Using an aggressive tone reflects worse on the writer than the target, even if rebutting a despicable point of view. 

Use aids for style and grammar

Even the smallest typo can derail the most carefully planned argument. The problem is, it’s hard to formulate the best possible argument if you’re distracted by spelling and grammar. 

Grammarly finds all of your writing mistakes for you so you can stay focused on what’s important. It even checks your tone and clarity to make sure your true argument always shines through and comes across as intended. See how Grammarly can help your next writing project by downloading it now.

How to Write a Strong Argument

Written by Quinn Gilman-Forlini

Your argument is one of the most important elements of your paper. Why? 

It’s your paper’s purpose —it’s why you’re writing this paper in the first place (other than that you have to). Your argument addresses the central question your paper sets out to explore, the reason why everything else in your paper—evidence, main ideas, analysis, research—exists. Everything should be working together to build and support your argument.

So in this guide, we’re going to talk through what you can do to build stronger, clearer, more effective arguments.

What is a thesis statement?

Your thesis statement is a distilled version of your argument that’s both easily identifiable and comprehensible. Usually the thesis should appear early in the paper in order to give your reader a sense of clarity and direction regarding what the paper will argue. Ideally, your reader will point to your thesis and say, “This is why I should keep reading. I want to find out more about how they will demonstrate this compelling idea.” (Okay, maybe they won’t sound exactly like that, but you get the idea.) 

The Elements of a Thesis 

Your thesis should aim to meet all the requirements on this checklist: 

The essence of your argument should be contained in one sentence for shorter papers, and two for longer or more complex papers. (If you’re writing a book, your argument may be longer than two sentences, but that’s probably somewhere down the road.)

It should immediately be clear to the reader precisely what you’re arguing and where the paper is headed. Any context you need to set up for this clarity should come in the introductory paragraph (or intro section, for much longer papers) before the thesis. 

Your thesis should provide the essential details for understanding your argument, which could include things like specific elements of the text you’re focusing on and the significance of your claim. 

☐ Debatable

Someone should reasonably be able to argue against your thesis. If that would be tough and most people would agree with your stance (see various examples in next section), your paper will lack purpose. 

☐ Insightful

Your thesis should be interesting and compelling, ideally something that readers may not have considered before. Think of your paper as adding something new and thought-provoking to the wider conversation about your topic. It’s insight that turns a good argument into a great one.  

What to Avoid In a Thesis (With Examples) 

Before we look at how to write a thesis that checks all those boxes, let’s consider what not to do when developing an argument. To offer a concrete example that many readers will be familiar with, we’ll use the Disney classic Beauty and the Beast as source material for these … less-than-stellar theses. 

A summary statement of your paper. 

Example: This paper will talk about Belle’s choices in Beauty and the Beast. 

Analysis: A thesis needs to make a claim, and this doesn’t take a stance regarding Belle’s choices (also: what choices?). 

An obvious observation. 

Example: In Beauty and the Beast , Belle’s love for the Beast develops slowly over the course of the movie.

Analysis: Anyone who watches the film could make this observation. 

A statement of fact.  

Example: Beauty and the Beast is an animated film released in 1991. 

Analysis: A fact is not an argument, since facts can’t be argued. 

An observation that’s on the fence.  

Example: While some might say that the Beast was cruel to Belle and some might say that he was kind, really he was a little bit of both. 

Analysis: If you take everyone’s side, no one can argue against you.  

Something virtually everybody would agree on. 

Example: Gaston does not have Belle’s best interests in mind when he asks her to marry him. 

Analysis: This is technically a claim. But you’d be hard pressed to find someone who’d argue that Gaston does have Belle’s best interests in mind, so there’s little point in arguing something we can all agree on.  

Something that has no grounding in the text(s). 

Example: Beauty and the Beast is about the effects of growing up with divorced parents. 

Analysis: It’d be pretty impossible to back up this claim considering there’s no mention of divorce in this story. 

A cliché. 

Example: Beauty and the Beast shows us to follow your heart and find true love.  

Analysis: If we’ve heard an idea or phrase a million times, there’s nothing interesting or insightful about it. 

What Makes a Strong Thesis? 

A strong thesis checks each box on the list above, with special attention to these two elements: 

it’s debatable enough that it would spark an interesting discussion

and it’s insightful enough that it makes people think about your topic/text(s) in a new light. 

And in just a bit we’ll discuss specific ways to further strengthen these aspects. But first, to illustrate what we mean by debatable and insightful (and continuing to use Beauty and the Beast as an example), here’s a thesis that incorporates these elements: 

Although some would argue that Belle is a feminist character because she portrays independence by refusing Gaston’s aggressive advances, her main role in the story becomes changing the Beast’s violent and controlling behavior, showing that Belle ultimately follows the traditional gender role of women nurturing and “fixing” aggressive men.  — — —

This thesis is clear and specific , providing details about what the essay will be about (what Belle’s behavior towards the Beast suggests about the film’s portrayal of gender roles) and what the writer is trying to convince the reader of (that Belle is ultimately not a feminist character). It’s debatable because not everyone might hold this viewpoint (many people view Belle as a feminist character, and there is textual evidence to support that side, as the thesis itself points out by conceding a counter-point via Belle’s refusal to marry Gaston). It also provides additional insight into the text by pointing out the theme of aggressive male characters and drawing an unexpected parallel between Gaston (the villain) and the Beast (the hero). Finally, all that content is concisely worded in only one sentence.

How to Write a Working Thesis Statement in 4 Steps 

A strong thesis likely won’t appear fully-formed when you sit down to write. Let’s take a look at how you might develop the above thesis step by step by answering the four questions below. 

Step 1: Topic

What theme(s), idea(s), or topic(s) do you want to focus on in your essay? What are the broader concepts you want to write about? 

Example 1: I want to write about gender roles in Beauty and the Beast . 

Example 2: I want to write about Belle’s behavior towards the male characters in Beauty and the Beast. 

Either of these examples could eventually lead to the thesis above. If you start off with a more specific topic here, your final claim will likely be more specific, too!  

Step 2: Problem 

What is a specific aspect of your topic that you want to explore further? What is the problem, question, or interesting element that you observed about your topic in the text(s)? If there’s something strange you noticed in the text or something you’re intrigued by, that’s a great place to start. 

Example: I want to explore why Belle nurtures the Beast even though he’s controlling over her, which makes me question whether she is as untraditional as the beginning of the film leads viewers to believe. 

Step 3: Purpose 

It’s important to consider what the significance of your argument is. In other words, what do you want to convince your reader of? What do you hope to show your reader through your paper? 

Example: I want to convince my reader that Belle fits into a traditional gender role by “fixing” (and falling in love with) an aggressive male character, showing that Belle is not a feminist character. 

Step 4: Claim 

Time to make a claim. Remember that this should be debatable: You’re writing an argument that some people might reasonably disagree with. 

Example: Belle’s main role in Beauty and the Beast is to change the Beast’s violent and controlling behavior, showing that Belle is not a feminist character because she follows the traditional gender role of women nurturing and “fixing” aggressive men. 

Why This Is a “Working Thesis” 

Note that the counter-point about Gaston hasn’t yet made it into this thesis. What emerged from this 4-step generative exercise is a working thesis, also known as a provisional or preliminary thesis. Through the act of writing, research, and further analysis of your ideas, your working thesis will likely be refined, specified, shifted, or even changed completely. (And that’s okay! In fact, that’s usually how people build good arguments.) 

Allow your argument to develop naturally through the writing process. Often, we may not be sure exactly what we want to say about a topic until we begin working. Sometimes, you’ll find that you start to disagree with your original premise (maybe as you research, you find evidence that shows your initial argument was actually flawed or wrong, for example) and want to argue the opposite instead. Or maybe a more specific topic emerges through further research and you want to narrow the scope of your thesis. 

A key takeaway:

Don’t feel as though once you’ve written your working thesis that it’s set in stone. Smart students adapt and refine arguments as they go. (Corollary: Be wary of becoming too attached to your argument.)

In the case of our Beauty and the Beast example, the working thesis’ claim remains the same, but the revised version adds another layer of insight by pointing out a similarity between Gaston and the Beast. 

Strengthening Your Thesis By Adding Insight 

What sets a stronger argument apart is insight . That is, going beyond the surface-level of your topic, showing deeper thought, and introducing an observation or idea that not everyone who has studied the same text(s) would necessarily consider. 

Insight might develop naturally as you work on your paper. Be on the look-out for patterns and new observations, and follow your curiosity as you conduct and analyze your research. 

Here are some techniques for actively considering and developing insight in your argument: 

Find a similarity between things that seem different. 

Gaston and the Beast are foils to one another, and represent different things to Belle and the story. But by observing the similarity of aggression in Gaston and the Beast, the thesis example above adds insight to its claim about gender roles. 

Find a difference between things that seem similar. 

At first glance, Belle and Cinderella have a lot in common: They both enter unfamiliar worlds, fall in love with a prince, and become princesses by the end. But Belle comes from a loving home and encounters the Beast when rescuing her father, whereas one of Cinderella’s main motivations for marrying the Prince is to escape her stepmother.  

Question an underlying assumption. 

It may seem like Belle isn’t a feminist character because she’s reliant on the men in her life and ends up marrying at the end, but that stance assumes that Belle would have other options. When Gaston hatches his plan to lock Belle’s father up in an asylum, it’s implied that Belle would have to marry him at that point, since no one would be able to support her—showing that women in her world weren’t able (or allowed) to support themselves.  

Observe something that is true, but isn’t immediately apparent. 

Although the symbolism of the curse placed on the Beast can be interpreted to mean that inner beauty is more important than looks, the fact that one of Belle’s main character traits is physical beauty suggests that this message may not be applied in the same way to women.

Continually ask yourself: “Why does this matter?” or “Why is this important?” In other words, what is the significance of your claim? 

The deeper you can dig into the “so what?” of your argument, the more insight you’ll find. Why does it matter that the film suggests that masculinity needs to be “tamed” by women? What’s important about the differences between Belle’s and Cinderella’s motivations? Linking your observation to its larger significance will add more insight and purpose to your argument (and will set you up for more interesting, complex conclusions). 

Questions to Help You Revise Your Thesis

After you’ve written your argument, imagine you’re encountering it for the first time. Ask yourself these questions to see where you might need improvement. Better yet, swap your thesis with a classmate’s and carefully and critically answer these questions for one another: 

Is it specific? Do you understand exactly what the paper will be arguing?

Is it debatable? Could somebody reasonably argue against it?

Is it grounded in the text(s) and/or evidence? Do you understand the specific aspect(s) of the evidence or text that the paper will be focusing on?

Is it surprising? Does it bring up something in a new way? Are you intrigued to read how the paper will demonstrate the argument? 

With the framing and approach above, you should have the tools to construct a solid argument. Time to ponder some insights and dive into writing!

Special thanks to Quinn Gilman-Forlini for writing this post and contributing to other College Writing Center resources

Quinn Gilman-Forlini (she/her) loves helping students discover more about themselves through writing. She earned her MFA in creative writing from the University of Virginia and her BA in English from Ursinus College, where she later taught creative writing and composition. Now she coaches students one-on-one with personal statements and applications for college and graduate school. She loves books, TV, and movies in equal measure, as long as they tell a great story.

Top Values: Creativity, Curiosity, Balance

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How to Write an Argumentative Essay

4-minute read

• 30th April 2022

An argumentative essay is a structured, compelling piece of writing where an author clearly defines their stance on a specific topic. This is a very popular style of writing assigned to students at schools, colleges, and universities. Learn the steps to researching, structuring, and writing an effective argumentative essay below.

Requirements of an Argumentative Essay

To effectively achieve its purpose, an argumentative essay must contain:

●  A concise thesis statement that introduces readers to the central argument of the essay

●  A clear, logical, argument that engages readers

●  Ample research and evidence that supports your argument

Approaches to Use in Your Argumentative Essay

1.   classical.

●  Clearly present the central argument.

●  Outline your opinion.

●  Provide enough evidence to support your theory.

2.   Toulmin

●  State your claim.

●  Supply the evidence for your stance.

●  Explain how these findings support the argument.

●  Include and discuss any limitations of your belief.

3.   Rogerian

●  Explain the opposing stance of your argument.

●  Discuss the problems with adopting this viewpoint.

●  Offer your position on the matter.

●  Provide reasons for why yours is the more beneficial stance.

●  Include a potential compromise for the topic at hand.

Tips for Writing a Well-Written Argumentative Essay

●  Introduce your topic in a bold, direct, and engaging manner to captivate your readers and encourage them to keep reading.

●  Provide sufficient evidence to justify your argument and convince readers to adopt this point of view.

●  Consider, include, and fairly present all sides of the topic.

●  Structure your argument in a clear, logical manner that helps your readers to understand your thought process.

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●  Discuss any counterarguments that might be posed.

●  Use persuasive writing that’s appropriate for your target audience and motivates them to agree with you.

Steps to Write an Argumentative Essay

Follow these basic steps to write a powerful and meaningful argumentative essay :

Step 1: Choose a topic that you’re passionate about

If you’ve already been given a topic to write about, pick a stance that resonates deeply with you. This will shine through in your writing, make the research process easier, and positively influence the outcome of your argument.

Step 2: Conduct ample research to prove the validity of your argument

To write an emotive argumentative essay , finding enough research to support your theory is a must. You’ll need solid evidence to convince readers to agree with your take on the matter. You’ll also need to logically organize the research so that it naturally convinces readers of your viewpoint and leaves no room for questioning.

Step 3: Follow a simple, easy-to-follow structure and compile your essay

A good structure to ensure a well-written and effective argumentative essay includes:

Introduction

●  Introduce your topic.

●  Offer background information on the claim.

●  Discuss the evidence you’ll present to support your argument.

●  State your thesis statement, a one-to-two sentence summary of your claim.

●  This is the section where you’ll develop and expand on your argument.

●  It should be split into three or four coherent paragraphs, with each one presenting its own idea.

●  Start each paragraph with a topic sentence that indicates why readers should adopt your belief or stance.

●  Include your research, statistics, citations, and other supporting evidence.

●  Discuss opposing viewpoints and why they’re invalid.

●  This part typically consists of one paragraph.

●  Summarize your research and the findings that were presented.

●  Emphasize your initial thesis statement.

●  Persuade readers to agree with your stance.

We certainly hope that you feel inspired to use these tips when writing your next argumentative essay . And, if you’re currently elbow-deep in writing one, consider submitting a free sample to us once it’s completed. Our expert team of editors can help ensure that it’s concise, error-free, and effective!

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Evidence-Based Arguments: Evidence-Based Arguments

Using evidence.

One of the central features of scholarly writing is the use of evidence to make an argument. You must learn how to incorporate other scholars' writing and arguments into your own.

In scholarly writing, you will often use paraphrased material or direct quotations from other sources to support your research and strengthen your academic argument. Although direct quotations are generally not as strong as paraphrases, they can add evidence and substance to your scholarly argument. Do keep in mind, however, that some instructors forbid direct quotations for some assignments.

In using quotations or source material, however, you must adequately incorporate the quotations and ideas from your sources. Simply inserting the material into your paragraph is not enough. You must incorporate your citation information, and then introduce, integrate, and explain your use of the quotations or source material.

On the following subpages, learn how to introduce, integrate, and explain evidence that you use from other sources.

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How to Build an Effective Argument in an Essay

The Meaning of Argument

The word argument is derived from the Latin word argūmentum, which translates to “evidence” or “proof.” And any piece of writing that aims to substantiate a claim by building a reasonable, logical argument can be classified as argumentative writing. In academic writing, the first step to developing a strong argument is to establish a claim and then support it with strong reasons and solid evidence.

Argument Methods Commonly Used in Academic Writing

There are different types of argument models one can choose from while writing an argumentative essay or research paper . The following are some such frequently used models:

1. Classical Argument

The Classical argument was developed by the Greek philosopher Aristotle and is also referred to as the Aristotelian argument. This argument method is direct and more aggressive when compared to other methods. It is used when the claim is straightforward, without scope for a potential conflict. 

2. Rogerian Argument

This argument method is based on American psychologist Carl Rogers’ studies and is useful in addressing controversial topics. It involves acknowledging the existence of opposing views and aims to find a middle ground in the form of a conclusion that can accommodate and address the opposing views.

3. Toulmin Argument

Like the Rogerian method, the Toulmin method is also used when building an argument around a topic that is complex and controversial. However, the Toulmin method is selective and focuses only on one side of the argument without elaborating on opposing views. In some cases, a rebuttal is offered to opposing views only to strengthen the original claim.

While the classical argument is the most common argumentative method used in academic writing, any of the other types can also be used to build an effective argument. 

Building an Effective Argument in an Essay

In order t o develop a strong argument, the writer must first thoroughly evaluate the essay topic. This helps them identify their stance on the topic before presenting a claim. The claim, once presented, is further backed by relevant evidence in the form of facts, figures, data, etc., which consequently leads to a logical conclusion in support of the claim.

The following is a step-by-step guide to building an effective argument:

Making a Claim

The claim is the main point around which an argument is built. It is an assertion or a proposition that is usually introduced in the form of a thesis statement. A claim can either be an opinion, a fact, or anything else that is open to evaluation and interpretation. 

Using the Power of Reasoning to Present Valid Explanations

Once a claim is made, it must be supported with logical reasons that can add to its credibility. For this, writers rely on their critical thinking abilities and one of the two logical reasoning methods: 

• Inductive reasoning: This type of reasoning is based on conjectures and helps arrive at a generalized conclusion based on general observations (such as identifying a pattern).
• Deductive reasoning: This type of reasoning helps writers arrive at a conclusion by taking into account specific data such as facts, principles, properties, rules, etc.

Finding Supporting Evidence

Any of the following types of evidence can be used while building an effective argument in an essay: 

• Statistical or scientific data: This refers to any finding that is an outcome of statistical or scientific research .
• Anecdotal evidence: This refers to any personal opinion or experience. Often, personal or reflective essays have an essay hook that is usually an anecdote or incident that garners the attention of the readers and gets them interested in further reading. 
• Testimonials: These are opinions of those who have significant experience and expertise in a particular field or subject. A testimonial can be a quote used at the beginning of an essay, an excerpt from an interview, or an opinion piece written by an expert.

Using a Warrant

A warrant is an assumption made to support the main argument. It may or may not be explicitly stated and can either be a straightforward assumption or a shared relatable belief. If readers can relate to the warrant stated by the writer, then there is a possibility that they will be compelled to agree with the writer’s point of view. 

Acknowledging Limitations and Counterarguments

A reasonable writer is never afraid to acknowledge that there are certain limitations to their claim. Acknowledging opposing views and counterarguments in a graceful manner helps a writer earn readers’ trust and thereby credibility. 

Reaching a Conclusion

Many writers simply summarize the essay in the conclusion paragraph. However, a good conclusion is more than just a summary and one which: 

• Supports the premise
• Backs the evidence
• Establishes a relationship between the reasons, evidence, and warrants
• Agrees with the claim made by the writer

To sum up, an effective argument is one which helps the writer drive the main point home. Knowing how to build an effective argument not only helps writers persuade their audience, but also helps them develop their critical thinking and writing skills.

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9.1 Types of Evidence in Academic Arguments

All academic writers use evidence to support their claims. However, different writing tasks in different fields require different types of evidence. Often, a combination of different types of evidence is required to support and develop a point adequately.

A writer uses evidence to support or defend his or her argument, and only valid and credible evidence is enough to make an argument strong.

Evidence is not simply “facts.” Evidence is not simply “quotes.”

As you develop your research-supported essay, consider not only what types of evidence might support your ideas but also what types of evidence will be considered valid or credible according to the academic discipline or academic audience for which you are writing.

Evidence in the Humanities: Literature, Art, Film, Music, Philosophy

• Scholarly essays that analyze original works
• Details from an image, a film, or other work of art
• Passages from a musical composition
• Passages of text, including poetry

Evidence in the Humanities: History

• Primary Sources (photos, letters, maps, official documents, etc.)
• Other books or articles that interpret primary sources or other evidence.

Evidence in the Social Sciences: Psychology, Sociology, Political Science, Anthropology

• Books or articles that interpret data and results from other people’s original experiments or studies.
• Results from one’s field research (including interviews, surveys, observations, etc.)
• Data from one’s experiments
• Statistics derived from large studies

Evidence in the Sciences: Biology, Chemistry, Physics

• Data from the author of the paper’s experiments

What remains consistent no matter the discipline in which you are writing, however, is that “evidence” NEVER speaks for itself—you must integrate it into your argument or claim and demonstrate that the evidence supports your thesis. In addition, be alert to evidence that seems to contradict your claims or offers a counterargument: rebutting that counterargument can be powerful evidence for your claim. You can also make evidence that isn’t there  an integral part of your argument, too. If you can’t find the evidence you think you need, ask yourself why it seems to be lacking, or if its absence adds a new dimension to your thinking about the topic. Remember,  evidence is not the piling up of facts or quotes: evidence is only one component of a strong, well supported, well-argued, and well-written composition.

Attributions

A Guide to Rhetoric, Genre, and Success in First-Year Writing  by Melanie Gagich & Emilie Zickel is licensed under a  Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License , except where otherwise noted.

This page contains material from “About Writing: A Guide” by Robin Jeffrey,  OpenOregon Educational Resources , Higher Education Coordination Commission: Office of Community Colleges and Workforce Development is licensed under CC BY 4.0.

This chapter has additions, edits, and organization by James Charles Devlin.

9.1 Types of Evidence in Academic Arguments Copyright © by James Charles Devlin is licensed under a Creative Commons Attribution 4.0 International License , except where otherwise noted.

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Writing Center

Choose a topic, build an argument, analyze your audience, support the premises, consider counterarguments.

• Identify the Naysayers – When you provide an example of an objection to your argument, it is helpful to identify who  objects. Whenever possible, be specific (and accurate) about who objects to your claim. For example, you might say, “Most liberal philosophers disagree because ….” If you want to add more weight to the counterargument, you might include a specific example: “For example, German philosopher Jurgen Habermas says ….”
• Represent Objections Fairly – Show you understand the other side’s ideas by explaining them fairly and accurately. One sentence is rarely enough to explain your opponents’ position fairly, so dedicate a few sentences, even a paragraph, to explaining their position. In particular, avoid slighting the opposition . In other words, don’t just omit inconvenient points because they undermine your position. Describe the counterargument so opponents would feel you portrayed their ideas properly.
• Answer Objections – Never say, “But that’s just wrong,” and move on. Chances are you will probably agree with some of the better points of the counterargument; conceding to some of the counterargument shows your reader that you are not close-minded. But once you make the concession, show why, in the end, it still does not refute your argument. If you do, in fact, believe the opposing position to be completely wrong, dedicate the time and space to giving a full explanation of why you think that. The more you see wrong with the other side, the more explaining you should do. If you cannot come up with a convincing reply to a counterargument, revise your argument to account for the good point you just discovered.

Employ Rhetorical Devices: Ethos and Pathos

Find common ground, structure your essay, create an effective introduction, create a memorable conclusion, also recommended for you:.

What this handout is about

This handout will provide a broad overview of gathering and using evidence. It will help you decide what counts as evidence, put evidence to work in your writing, and determine whether you have enough evidence. It will also offer links to additional resources.

Introduction

Many papers that you write in college will require you to make an argument ; this means that you must take a position on the subject you are discussing and support that position with evidence. It’s important that you use the right kind of evidence, that you use it effectively, and that you have an appropriate amount of it. If, for example, your philosophy professor didn’t like it that you used a survey of public opinion as your primary evidence in your ethics paper, you need to find out more about what philosophers count as good evidence. If your instructor has told you that you need more analysis, suggested that you’re “just listing” points or giving a “laundry list,” or asked you how certain points are related to your argument, it may mean that you can do more to fully incorporate your evidence into your argument. Comments like “for example?,” “proof?,” “go deeper,” or “expand” in the margins of your graded paper suggest that you may need more evidence. Let’s take a look at each of these issues—understanding what counts as evidence, using evidence in your argument, and deciding whether you need more evidence.

What counts as evidence?

Before you begin gathering information for possible use as evidence in your argument, you need to be sure that you understand the purpose of your assignment. If you are working on a project for a class, look carefully at the assignment prompt. It may give you clues about what sorts of evidence you will need. Does the instructor mention any particular books you should use in writing your paper or the names of any authors who have written about your topic? How long should your paper be (longer works may require more, or more varied, evidence)? What themes or topics come up in the text of the prompt? Our handout on understanding writing assignments can help you interpret your assignment. It’s also a good idea to think over what has been said about the assignment in class and to talk with your instructor if you need clarification or guidance.

What matters to instructors?

Instructors in different academic fields expect different kinds of arguments and evidence—your chemistry paper might include graphs, charts, statistics, and other quantitative data as evidence, whereas your English paper might include passages from a novel, examples of recurring symbols, or discussions of characterization in the novel. Consider what kinds of sources and evidence you have seen in course readings and lectures. You may wish to see whether the Writing Center has a handout regarding the specific academic field you’re working in—for example, literature , sociology , or history .

What are primary and secondary sources?

A note on terminology: many researchers distinguish between primary and secondary sources of evidence (in this case, “primary” means “first” or “original,” not “most important”). Primary sources include original documents, photographs, interviews, and so forth. Secondary sources present information that has already been processed or interpreted by someone else. For example, if you are writing a paper about the movie “The Matrix,” the movie itself, an interview with the director, and production photos could serve as primary sources of evidence. A movie review from a magazine or a collection of essays about the film would be secondary sources. Depending on the context, the same item could be either a primary or a secondary source: if I am writing about people’s relationships with animals, a collection of stories about animals might be a secondary source; if I am writing about how editors gather diverse stories into collections, the same book might now function as a primary source.

Where can I find evidence?

Here are some examples of sources of information and tips about how to use them in gathering evidence. Ask your instructor if you aren’t sure whether a certain source would be appropriate for your paper.

Print and electronic sources

Books, journals, websites, newspapers, magazines, and documentary films are some of the most common sources of evidence for academic writing. Our handout on evaluating print sources will help you choose your print sources wisely, and the library has a tutorial on evaluating both print sources and websites. A librarian can help you find sources that are appropriate for the type of assignment you are completing. Just visit the reference desk at Davis or the Undergraduate Library or chat with a librarian online (the library’s IM screen name is undergradref).

Observation

Sometimes you can directly observe the thing you are interested in, by watching, listening to, touching, tasting, or smelling it. For example, if you were asked to write about Mozart’s music, you could listen to it; if your topic was how businesses attract traffic, you might go and look at window displays at the mall.

An interview is a good way to collect information that you can’t find through any other type of research. An interview can provide an expert’s opinion, biographical or first-hand experiences, and suggestions for further research.

Surveys allow you to find out some of what a group of people thinks about a topic. Designing an effective survey and interpreting the data you get can be challenging, so it’s a good idea to check with your instructor before creating or administering a survey.

Experiments

Experimental data serve as the primary form of scientific evidence. For scientific experiments, you should follow the specific guidelines of the discipline you are studying. For writing in other fields, more informal experiments might be acceptable as evidence. For example, if you want to prove that food choices in a cafeteria are affected by gender norms, you might ask classmates to undermine those norms on purpose and observe how others react. What would happen if a football player were eating dinner with his teammates and he brought a small salad and diet drink to the table, all the while murmuring about his waistline and wondering how many fat grams the salad dressing contained?

Personal experience

Using your own experiences can be a powerful way to appeal to your readers. You should, however, use personal experience only when it is appropriate to your topic, your writing goals, and your audience. Personal experience should not be your only form of evidence in most papers, and some disciplines frown on using personal experience at all. For example, a story about the microscope you received as a Christmas gift when you were nine years old is probably not applicable to your biology lab report.

Using evidence in an argument

Does evidence speak for itself.

Absolutely not. After you introduce evidence into your writing, you must say why and how this evidence supports your argument. In other words, you have to explain the significance of the evidence and its function in your paper. What turns a fact or piece of information into evidence is the connection it has with a larger claim or argument: evidence is always evidence for or against something, and you have to make that link clear.

As writers, we sometimes assume that our readers already know what we are talking about; we may be wary of elaborating too much because we think the point is obvious. But readers can’t read our minds: although they may be familiar with many of the ideas we are discussing, they don’t know what we are trying to do with those ideas unless we indicate it through explanations, organization, transitions, and so forth. Try to spell out the connections that you were making in your mind when you chose your evidence, decided where to place it in your paper, and drew conclusions based on it. Remember, you can always cut prose from your paper later if you decide that you are stating the obvious.

Here are some questions you can ask yourself about a particular bit of evidence:

• OK, I’ve just stated this point, but so what? Why is it interesting? Why should anyone care?
• What does this information imply?
• What are the consequences of thinking this way or looking at a problem this way?
• I’ve just described what something is like or how I see it, but why is it like that?
• I’ve just said that something happens—so how does it happen? How does it come to be the way it is?
• Why is this information important? Why does it matter?
• How is this idea related to my thesis? What connections exist between them? Does it support my thesis? If so, how does it do that?
• Can I give an example to illustrate this point?

Answering these questions may help you explain how your evidence is related to your overall argument.

How can I incorporate evidence into my paper?

There are many ways to present your evidence. Often, your evidence will be included as text in the body of your paper, as a quotation, paraphrase, or summary. Sometimes you might include graphs, charts, or tables; excerpts from an interview; or photographs or illustrations with accompanying captions.

When you quote, you are reproducing another writer’s words exactly as they appear on the page. Here are some tips to help you decide when to use quotations:

• Quote if you can’t say it any better and the author’s words are particularly brilliant, witty, edgy, distinctive, a good illustration of a point you’re making, or otherwise interesting.
• Quote if you are using a particularly authoritative source and you need the author’s expertise to back up your point.
• Quote if you are analyzing diction, tone, or a writer’s use of a specific word or phrase.
• Quote if you are taking a position that relies on the reader’s understanding exactly what another writer says about the topic.

Be sure to introduce each quotation you use, and always cite your sources. See our handout on quotations for more details on when to quote and how to format quotations.

Like all pieces of evidence, a quotation can’t speak for itself. If you end a paragraph with a quotation, that may be a sign that you have neglected to discuss the importance of the quotation in terms of your argument. It’s important to avoid “plop quotations,” that is, quotations that are just dropped into your paper without any introduction, discussion, or follow-up.

Paraphrasing

When you paraphrase, you take a specific section of a text and put it into your own words. Putting it into your own words doesn’t mean just changing or rearranging a few of the author’s words: to paraphrase well and avoid plagiarism, try setting your source aside and restating the sentence or paragraph you have just read, as though you were describing it to another person. Paraphrasing is different than summary because a paraphrase focuses on a particular, fairly short bit of text (like a phrase, sentence, or paragraph). You’ll need to indicate when you are paraphrasing someone else’s text by citing your source correctly, just as you would with a quotation.

When might you want to paraphrase?

• Paraphrase when you want to introduce a writer’s position, but their original words aren’t special enough to quote.
• Paraphrase when you are supporting a particular point and need to draw on a certain place in a text that supports your point—for example, when one paragraph in a source is especially relevant.
• Paraphrase when you want to present a writer’s view on a topic that differs from your position or that of another writer; you can then refute writer’s specific points in your own words after you paraphrase.
• Paraphrase when you want to comment on a particular example that another writer uses.
• Paraphrase when you need to present information that’s unlikely to be questioned.

When you summarize, you are offering an overview of an entire text, or at least a lengthy section of a text. Summary is useful when you are providing background information, grounding your own argument, or mentioning a source as a counter-argument. A summary is less nuanced than paraphrased material. It can be the most effective way to incorporate a large number of sources when you don’t have a lot of space. When you are summarizing someone else’s argument or ideas, be sure this is clear to the reader and cite your source appropriately.

Statistics, data, charts, graphs, photographs, illustrations

Sometimes the best evidence for your argument is a hard fact or visual representation of a fact. This type of evidence can be a solid backbone for your argument, but you still need to create context for your reader and draw the connections you want them to make. Remember that statistics, data, charts, graph, photographs, and illustrations are all open to interpretation. Guide the reader through the interpretation process. Again, always, cite the origin of your evidence if you didn’t produce the material you are using yourself.

Do I need more evidence?

Let’s say that you’ve identified some appropriate sources, found some evidence, explained to the reader how it fits into your overall argument, incorporated it into your draft effectively, and cited your sources. How do you tell whether you’ve got enough evidence and whether it’s working well in the service of a strong argument or analysis? Here are some techniques you can use to review your draft and assess your use of evidence.

Make a reverse outline

A reverse outline is a great technique for helping you see how each paragraph contributes to proving your thesis. When you make a reverse outline, you record the main ideas in each paragraph in a shorter (outline-like) form so that you can see at a glance what is in your paper. The reverse outline is helpful in at least three ways. First, it lets you see where you have dealt with too many topics in one paragraph (in general, you should have one main idea per paragraph). Second, the reverse outline can help you see where you need more evidence to prove your point or more analysis of that evidence. Third, the reverse outline can help you write your topic sentences: once you have decided what you want each paragraph to be about, you can write topic sentences that explain the topics of the paragraphs and state the relationship of each topic to the overall thesis of the paper.

For tips on making a reverse outline, see our handout on organization .

Color code your paper

You will need three highlighters or colored pencils for this exercise. Use one color to highlight general assertions. These will typically be the topic sentences in your paper. Next, use another color to highlight the specific evidence you provide for each assertion (including quotations, paraphrased or summarized material, statistics, examples, and your own ideas). Lastly, use another color to highlight analysis of your evidence. Which assertions are key to your overall argument? Which ones are especially contestable? How much evidence do you have for each assertion? How much analysis? In general, you should have at least as much analysis as you do evidence, or your paper runs the risk of being more summary than argument. The more controversial an assertion is, the more evidence you may need to provide in order to persuade your reader.

Play devil’s advocate, act like a child, or doubt everything

This technique may be easiest to use with a partner. Ask your friend to take on one of the roles above, then read your paper aloud to them. After each section, pause and let your friend interrogate you. If your friend is playing devil’s advocate, they will always take the opposing viewpoint and force you to keep defending yourself. If your friend is acting like a child, they will question every sentence, even seemingly self-explanatory ones. If your friend is a doubter, they won’t believe anything you say. Justifying your position verbally or explaining yourself will force you to strengthen the evidence in your paper. If you already have enough evidence but haven’t connected it clearly enough to your main argument, explaining to your friend how the evidence is relevant or what it proves may help you to do so.

Common questions and additional resources

• I have a general topic in mind; how can I develop it so I’ll know what evidence I need? And how can I get ideas for more evidence? See our handout on brainstorming .
• Who can help me find evidence on my topic? Check out UNC Libraries .
• I’m writing for a specific purpose; how can I tell what kind of evidence my audience wants? See our handouts on audience , writing for specific disciplines , and particular writing assignments .
• How should I read materials to gather evidence? See our handout on reading to write .
• How can I make a good argument? Check out our handouts on argument and thesis statements .
• How do I tell if my paragraphs and my paper are well-organized? Review our handouts on paragraph development , transitions , and reorganizing drafts .
• How do I quote my sources and incorporate those quotes into my text? Our handouts on quotations and avoiding plagiarism offer useful tips.
• How do I cite my evidence? See the UNC Libraries citation tutorial .
• I think that I’m giving evidence, but my instructor says I’m using too much summary. How can I tell? Check out our handout on using summary wisely.
• I want to use personal experience as evidence, but can I say “I”? We have a handout on when to use “I.”

Works consulted

We consulted these works while writing this handout. This is not a comprehensive list of resources on the handout’s topic, and we encourage you to do your own research to find additional publications. Please do not use this list as a model for the format of your own reference list, as it may not match the citation style you are using. For guidance on formatting citations, please see the UNC Libraries citation tutorial . We revise these tips periodically and welcome feedback.

Lunsford, Andrea A., and John J. Ruszkiewicz. 2016. Everything’s an Argument , 7th ed. Boston: Bedford/St Martin’s.

Miller, Richard E., and Kurt Spellmeyer. 2016. The New Humanities Reader , 5th ed. Boston: Cengage.

University of Maryland. 2019. “Research Using Primary Sources.” Research Guides. Last updated October 28, 2019. https://lib.guides.umd.edu/researchusingprimarysources .

You may reproduce it for non-commercial use if you use the entire handout and attribute the source: The Writing Center, University of North Carolina at Chapel Hill

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6 Types of Evidence in Writing

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Dr. Chris Drew is the founder of the Helpful Professor. He holds a PhD in education and has published over 20 articles in scholarly journals. He is the former editor of the Journal of Learning Development in Higher Education. [Image Descriptor: Photo of Chris]

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Writing an essay is a lot like participating in a debate. You have a main point that you want to make, and you need to support it. So, the question is: how do you support your main point?

The best way is to provide evidence.

Evidence can come from many sources and take many forms, but generally speaking, there are six types of evidence.

Each type of evidence may carry more weight than others. Choosing which type of evidence to use depends on the purpose of the essay and the audience.

For example, for essays in psychology or sociology that will be read by professors, evidence from research papers and statistics will be suitable, and expected.

However, if writing for the general public, evidence in the form of quotes from experts or testimonials from people involved in the subject may be more effective.

Ideally, it is good to have a mix of the different types of evidence so that the essay is well-rounded.

Using various types of evidence also shows the reader that you have researched the topic thoroughly. That will add credibility to the essay as a whole and instill an impression that the author is competent and trustworthy.

Here is a brief description of the six main types of evidence.

You Might Also Like: Transition Words for Providing Evidence in Essays

Types of Evidence in Writing

1. anecdotal evidence.

Anecdotal evidence comes from personal experience. It can involve a story about something that happened to you, or an observation you made about friends, relatives, or other people.

An informal interview with someone affected by the topic you are writing about is also a form of anecdotal evidence. That interview may have been conducted by the author of the essay or presented on a news program.

Although it is not considered very strong evidence, it does have a purpose. Describing a personal experience early in the essay can help establish context, show relevance of the subject, or be a way to build a connection with the audience.

In some cases, anecdotal evidence can be quite effective. It can reveal deeply personal or emotional elements of a phenomenon that are very compelling. Not all essays need to be full of scientific references and statistics to be effective at making a point.

See More: 19 Anecdotal Evidence Examples

2. Testimonial Evidence

Offering the opinion of an expert is referred to as testimonial evidence. Their opinion can come from an interview or quote from a book or paper they authored.

The words of someone who is considered an expert in a subject can provide a lot of support to the point you are trying to make. It adds strength and shows that what you are saying is not just your opinion, but is also the opinion of someone that is recognized and respected in the subject.

If that expert has an advanced degree from a notable university, such as Princeton or Stanford, then make sure the reader knows that. Similarly, if they are the president or director of an institution that is heavily involved in the subject, then be sure to include those credentials as well.

If your essay is for an academic course, use proper citation. This often involves indicating the year of the quote, where it was published, and the page number where the quote comes from.

Finally, if quoting an expert, choose the quote carefully. Experts sometimes use language that is overly complex or contains jargon that many readers may not understand. Limiting the quote to 1 or 2 sentences is also a good idea.

3. Statistical Evidence

Statistical evidence involves presenting numbers that support your point. Statistics can be used to demonstrate the prevalence and seriousness of a phenomenon.

When used early in the essay, it informs the reader as to how important the topic is and can be an effective way to get the reader’s attention.

For example, citing the number of people that die each year because they weren’t wearing a seat belt, or the number of children suffering from malnutrition, tells the reader that the topic is serious.

In addition to stating statistics in the body of the essay, including a graph or two will help make the point easier to understand. A picture can be worth a thousand words also applies to graphs and charts.

Graphs and charts also create a sense of credibility and add an extra punch of strength to your arguments.

Statistics can also be used to counter common misconceptions. This is a good way to clear the air right away regarding an issue that may not be well understood or in which there has been a lot of misinformation presented previously.

When presenting statistics, establish credibility by citing the source. Make sure that source is reputable. Scientific publications or well-respected organizations such as the CDC are good examples.

If your essay is for an academic assignment, then be sure to follow the publication guidelines for that discipline. Papers in business, sociology, and law have different rules for how to cite sources.

As persuasive as statistics can be, beware that many readers may be suspicious. There is a belief among some people that statistics are often faked or manipulated. This is due, in part, to many people not understanding the peer-review process that occurs before scientific papers are published.

4. Textual Evidence

Textual evidence comes directly from a source document. This could be a literary work or historical document. It is frequently used in an argumentative essay or as part of a compare-and-contrast type of academic assignment.

For example, if conducting a character analysis of a character in a novel, then identifying key sentences that provide examples of their personality will help support your analysis.

There are several ways of incorporating textual evidence: quoting, paraphrasing, and summarizing.

Quoting statements from the character themselves can be used to demonstrate their thought processes or personality flaws. Likewise, using the words of the author that describe the character will add support to your premise.

Paraphrasing involves conveying the points in the source document by using your own words. There is usually a degree of correspondence between the amount of text in the document and the paraphrased version. In other words, if your paraphrased version is longer than the section in the source document, then you should try again.

Summarizing involves condensing the text in the source document to its main points and highlighting the key takeaways you want the reader to focus on.

5. Analogical Evidence

An analogy is an example of a situation, but presented in a different context. Using an analogy is a great way to explain a complicated issue that is simpler and easier to digest.

Medical doctors often use analogies to describe health-related issues. For example, they might say that getting a yearly medical exam from your primary physician is like taking your car to the mechanic once a year to make sure everything is running okay.

One rule of thumb about analogies is that the simpler they are, the more easily understood. The analogy should have a degree of similarity with the issue being discussed, but, at the same time, be a bit different as well. Sorry about that; it’s a balance.

Be careful not to use an analogy that is too far-fetched. For example, comparing the human body to the universe is too much of a stretch. This might confuse the reader, make them feel frustrated because they don’t see the connection, and/or cause them to lose interest.

6. Hypothetical Evidence

Hypothetical evidence is presenting the reader with a “what if” kind of scenario. This is a great way to get the reader to consider possibilities that they may not have thought of previously.

One way to present a hypothetical is to pair it with a credible statistic. Ask the reader to consider what might happen in the context of those numbers.

Another strategy is to restate one of your arguments, and then present a hypothetical that aligns with that point. For example, if what you are saying is true, then X, Y, and Z may occur.

By providing a concrete hypothetical scenario, people can imagine what could happen. Opening a person’s mindset can be the first step towards an effective and persuasive essay.

There are many examples in history of phenomenon that people never thought possible, but later turned out to materialize. For example, climate change.

In the early days of climate science, the evidence was not readily available to a convincing degree to persuade the general public. However, extrapolating into the future through the use of hypotheticals can help people consider the possibility of fossil fuels causing climate crises.

The emotional dynamics activated when thinking about the future can help open some people’s eyes to different possibilities and generate concern. If only this had happened about 50 years ago.

Providing evidence for your main point in an essay can make it effective and persuasive. There are many types of evidence, and each one varies in terms of its strength and pertinence to the purpose of the essay.

In some situations, for example, anecdotal evidence and testimonials are sufficient to get a reader’s attention. In other situations, however, such as essays in the sciences, the reader will expect to see more than just opinions of the author.

Presenting statistics from reputable sources can add a lot of strength to an essay. While a lot of people are convinced by numbers, others are not.

Using quotes, either from experts or from a source document, are also effective ways to add support to the essay’s main point.

Analogies will help the reader understand a complex topic, while hypotheticals can be an effective way to get people to extend their thinking and consider what could happen if…

Incorporating several types of evidence is best. If all arguments in an essay only come from the author, it can come across as flimsy. A chair with three legs is better than a chair with two.

Bailey, S. (2003). Academic writing: A practical guide for students . Cheltenham, U.K.: Nelson Thornes Ltd.

Redman, P., & Maples, W. (2017). Good essay writing: A social sciences guide . Sage.

Savage, A., & Mayer, P. (2006). Effective academic writing: The short essay . Oxford: Oxford University Press.

Starkey, L. B. (2004). How to write great essays . Learning Express.

Warburton, N. (2020). The basics of essay writing . Routledge.

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