Analyzing Texts: Main Claims and Supporting Arguments

Every text you read – whether it’s a news article, a research paper, or an opinion piece – is built around an argument. But not all arguments are immediately obvious. Knowing how to locate the main claim and trace its supporting arguments is one of the most practical skills you can develop as a reader, writer, and critical thinker. It sharpens how you read, strengthens how you write, and makes you far more effective at analyzing any kind of text.

What is a main claim? 🔗

A main claim is the central argument of a text – the core position an author is asserting and wants you to accept. According to the Writing Center at PVCC, a claim defines a paper’s goals, direction, and scope. It is not a statement of fact everyone already agrees on, and it is not a vague personal opinion. It sits right in the middle: it takes a stance, but it requires evidence to be convincing.

Think of the main claim as the answer to the question: What is this author ultimately trying to persuade me of? As the University of Pittsburgh’s Department of Communication explains, claims are statements about what is true, good, or what should be believed – and crucially, they are potentially arguable. “Climate change is real” is widely accepted science and not a claim in this sense. But “Climate change is the single greatest threat to global biodiversity” is a claim – it takes a position that can be debated and must be supported.

Where to find the main claim in a text 🔗

In academic writing, the main claim is typically stated as a thesis statement, usually appearing near the end of the introduction. In essays and research papers, this is the most direct signal of what the entire piece argues. As this guide from the University of Texas at San Antonio notes, an effective introduction makes a debatable claim in a thesis statement, which may also hint at the supporting arguments to come.

In opinion articles or blog posts, the main claim can be more embedded in the text. In those cases, ask yourself: What position does the author keep returning to? What is the one idea everything else seems to be backing up? That is the main claim – even if it is never labeled as such.

It is also worth noting that texts can have both explicit and implicit claims. An explicit claim is stated outright; an implicit one is implied through the overall direction of the argument. When a claim is implicit, you need to read more carefully and ask: What does this author want me to believe by the end? As Monash University’s Student Academic Success team suggests, one reliable test is to try summarizing the main argument in your own words. If you cannot do it clearly, you likely haven’t fully identified it yet.

Spotting supporting arguments 🔗

Once you have identified the main claim, the next task is finding the supporting arguments – the reasons, evidence, and logic the author uses to make the claim believable. As the University of Pittsburgh frames it, arguments are claims backed by reasons that are supported by evidence. Supporting arguments are the scaffolding that holds the main claim up.

Supporting arguments typically appear at the paragraph level. Each body paragraph in a well-structured text usually has its own topic sentence – a mini-claim that directly supports the main thesis. The rest of the paragraph then provides details, data, or examples to back that mini-claim up. As outlined in Wilfrid Laurier University’s guide to identifying arguments, a paper’s structure usually works like this: the thesis sits at the top, sections each carry one supporting argument, and paragraphs within those sections carry smaller arguments that feed upward into the larger ones.

Types of supporting evidence to look for 🔗

Supporting arguments draw on different kinds of evidence. Recognizing these types helps you evaluate not just what the author is claiming, but how well they are backing it up:

Data and statistics – Numerical evidence from studies or research. For example, an author arguing that social media harms adolescent mental health might cite survey data showing rising rates of anxiety among teens who spend more than three hours per day online.

Expert testimony – References to researchers, scholars, or specialists whose findings support the claim. According to the University of Pittsburgh, expert testimony carries weight because it is backed by formal knowledge, methods, and training – not just personal experience.

Historical examples – Past events used to illustrate patterns or draw parallels. An author might reference the economic fallout of previous pandemics to support a claim about current public health policy.

Logical reasoning – Cause-and-effect chains or if-then arguments that explain why one thing follows from another. This type of support does not rely on external data but on the internal logic of the argument itself.

First-hand accounts – Eyewitness or experiential testimony that personalizes an argument and gives the audience a sense of direct exposure to the issue being discussed.

When reading, train yourself to notice signal phrases that introduce supporting points: phrases like “for example,” “research shows,” “according to,” “this is evident in,” or “as a result” often mark the transition into supporting evidence.

Building a strong argument analysis 🔗

Identifying the main claim and supporting arguments is only the first step. The real intellectual work is analyzing how effectively those arguments do their job. This is where critical thinking comes in.

Distinguishing primary arguments from secondary details 🔗

Not everything in a text is equally important to the argument. A common challenge is separating primary arguments – those that directly support the main claim – from secondary details that provide context, background, or illustration without actually advancing the argument.

For example, in a text arguing that remote work increases employee productivity, a primary argument might be: “Studies show that employees working from home report fewer interruptions and complete tasks 13% faster.” A secondary detail might be: “Remote work became widespread during the COVID-19 pandemic.” The second point gives context, but it does not on its own support the claim that remote work boosts productivity. Knowing the difference keeps your analysis focused and precise.

A useful test: ask whether a piece of information, if removed, would weaken the main claim. If the answer is yes, it is a primary supporting argument. If the text would hold up equally well without it, it is a secondary detail.

Evaluating the quality of the argument 🔗

Once you have mapped the structure – main claim, supporting arguments, secondary details – evaluate whether the argument actually holds. Wilfrid Laurier University’s guide suggests asking: Is the evidence sound and convincing? Does it logically connect to the claim? Could the same evidence support a different conclusion?

This last question is particularly important. As the guide notes, people can make very different claims and support them with similar evidence. The strength of an argument lies not just in having evidence, but in whether the reasoning connecting that evidence to the claim is tight and logical.

The Miami University Writing Center introduces a helpful concept here: the warrant – the underlying belief or assumption that links the support to the claim. If that assumption is flawed or not shared by the audience, even strong evidence can fail to persuade. Good argument analysis means checking not just whether evidence exists, but whether it actually does the logical work the author needs it to do.

How this skill improves your own writing 🔗

Analyzing arguments in other people’s texts is also one of the best ways to improve your own writing. When you see how a skilled author builds from a clear thesis through well-supported paragraphs, you get a blueprint for doing the same. Newsela’s guide on claims and arguments notes that an effective claim should be assertive, debatable, specific, and clearly connected to the evidence that follows – requirements that apply equally whether you are reading or writing.

Practically speaking, when drafting or reviewing your own work, check that every paragraph has a clear topic sentence that links directly back to your main claim. Then check that the evidence in that paragraph actually supports the topic sentence – not just the general topic. This discipline keeps your argument coherent from start to finish.

Putting it into practice 🔗

The best way to build this skill is through deliberate, repeated practice across different types of texts. Here is a straightforward approach you can apply to any reading:

First, read the introduction and conclusion carefully – the main claim is most often stated or summarized in these sections. Second, read each body paragraph and note the topic sentence. Third, ask how each topic sentence connects to the main claim – does it directly support it, or does it provide background? Fourth, identify the type of evidence used in each paragraph and ask whether it logically supports the point being made. Fifth, write a one-paragraph summary that captures the main claim and the two or three strongest arguments supporting it. If you can do that accurately and in your own words, you have understood the argument.

As Monash University points out, if you cannot summarize the main argument clearly, that is a signal to go back and read more carefully – not a sign that the text is too complex. It usually means one or more of the structural elements has not been fully located yet.

What do you think? When you read an article or essay, do you instinctively look for the main claim, or do you tend to absorb information without tracking the argument’s structure? And how might consistently identifying claims and supporting arguments change the way you engage with the texts you read every day?

References

1. https://www.pvcc.edu/files/making_a_claim.pdf
2. https://www.comm.pitt.edu/argument-claims-reasons-evidence
3. https://utsa.pressbooks.pub/fromcollegetocareer/chapter/core-101-academic-argument-essay/
4. https://www.monash.edu/student-academic-success/enhance-your-thinking/critical-thinking/identify-arguments
5. https://library.wlu.ca/sites/default/files/help/text/identifying-arguments.pdf
6. https://miamioh.edu/howe-center/hwc/writing-resources/handouts/writing-process/supporting-an-argument.html
7. https://newsela.com/blog/read/claims-arguments