English for comparing arguments

Learning objective

By the end of this lesson you will be able to compare two arguments in English by identifying their claims, evidence, assumptions and limits.

What to compare

Do not compare arguments by listing them side by side. Compare them by the same criteria: claim, evidence, assumption and conclusion. This reveals why the arguments differ and which is stronger. A useful starting question is "What would each author need to be true for their conclusion to hold?"

Identifying claims and evidence

State each argument in one sentence before comparing. Then list the evidence each uses. Evidence may be data, examples, authority or logic. Note whether the evidence is direct or indirect. Two arguments can reach different conclusions because they rely on different evidence, not because one is careless.

Assumptions and limits

Every argument rests on assumptions. An argument about online learning may assume that students have reliable internet access. An argument about workplace communication may assume a particular organisational culture. Naming assumptions helps you evaluate whether the argument travels to a new context. Limits include sample size, time period and population.

Contrast language

Use precise contrast language to show the relationship between arguments. "Whereas" links two clauses directly. "In contrast" begins a new sentence. "However" signals a turn. "On the one hand... on the other hand" works for balanced presentation but can create false balance if the evidence is unequal. Choose the signal that matches the strength of the difference.

Avoiding false balance

False balance occurs when you present two views as equally supported when the evidence is not equal. In academic writing, it is acceptable to say that one argument is better supported. You can acknowledge a minority view while still evaluating it: "Although X argues..., the evidence for Y is stronger because..." This is more honest than forced neutrality.

Common mistakes

• Summarising arguments without comparing them.
• Comparing surface features rather than reasoning.
• Ignoring assumptions.
• Using contrast words without a real contrast.
• Pretending all views are equally valid.

Practical tips

Create a comparison table with columns for claim, evidence, assumption and limit. Fill it in before writing. Practise stating the difference in one sentence: "The two arguments disagree about X because they weigh Y differently." When reading, highlight words that signal certainty or limitation.

Summary

Fair argument comparison identifies claims and evidence, names assumptions and limits, uses precise contrast language and avoids false balance.

Worked example

Argument A: "Online learning improves access because students can study anywhere." Argument B: "Online learning reduces quality because interaction is limited." A fair comparison notes that A relies on access data while B relies on interaction measures. It also notes that both assume reliable internet. A balanced conclusion: "Online learning increases access in this context, but its effect on interaction depends on course design."

Practice task

Choose two short opinion pieces on the same topic. Fill in a comparison table with claim, evidence, assumption and limit. Then write one sentence stating the real difference between the arguments. Avoid saying one is simply right or wrong.

Further practice

Read two arguments on a topic you know well. Identify one assumption in each argument and write a sentence explaining why it matters. Then write a conclusion that weighs the evidence without forcing agreement. This keeps your comparison analytical rather than descriptive.

Extension

Choose an argument you disagree with and write the strongest version of it that you can. Then identify the one piece of evidence that would change your view. This exercise builds fair comparison and intellectual honesty.

Related lessons

Continue with Comparing two viewpoints fairly, Separating fact, opinion and inference, and English for cautious academic claims.