2.6 Analyzing Arguments: Claims, Counterclaims, and Evidence
Key Takeaways
- The official skill requires three separate operations: analyzing claims and counterclaims, assessing reasoning for soundness, and analyzing how evidence supports a claim.
- A claim is a contestable assertion; evidence is the material offered for it; a warrant is the unstated assumption connecting the two.
- Arguments most often fail at the warrant, which is invisible in the text and must be reconstructed by the reader.
- Evidence questions ask whether evidence is relevant, sufficient, and representative — not merely whether it is true.
- An author who presents a counterclaim is not necessarily endorsing it; look for whether the counterclaim is answered, conceded, or left standing.
The Highest-Difficulty Rhetoric Sub-Skill
Of the five Rhetoric sub-skills, one carries noticeably more analytic load than the others. The official statement packs three distinct operations into a single line:
Analyzing arguments: The student will analyze claims and counterclaims, assess an author's reasoning for soundness, and analyze how an author uses or fails to use evidence to support a claim or counterclaim.
Read that as three jobs: map the argument, judge the reasoning, and evaluate the evidence. Items in the upper score bands (261 and above on the Skills Insight scale) draw heavily from this skill.
Job One: Mapping Claims and Counterclaims
Argument Anatomy
| Component | Definition | How to Find It |
|---|---|---|
| Claim | A contestable assertion the author wants accepted | Ask: could a reasonable person disagree? |
| Evidence | Data, examples, testimony, or precedent offered in support | Follows for instance, according to, studies show |
| Warrant | The unstated assumption linking evidence to claim | Never printed — you must reconstruct it |
| Counterclaim | An opposing position the author raises | Follows critics argue, opponents contend, some maintain |
| Rebuttal | The author's answer to the counterclaim | Follows however, yet, this overlooks |
The first discipline is separating claims from facts. "The bridge was completed in 1932" is a fact — verifiable, not contestable. "The bridge was the most consequential public work of its decade" is a claim, because a reasonable person could dispute it. Only claims need support.
The Counterclaim Trap
Authors regularly voice positions they do not hold. When a passage says "Opponents of the measure insist that it will depress wages," the wage claim belongs to the opponents, not to the author.
Three possible fates await a counterclaim, and identifying which one occurred is frequently the whole question:
- Rebutted — the author answers it. ("But wage data from comparable districts show no such effect.") The author disagrees.
- Conceded — the author grants it, usually partially. ("This concern has merit in the short term.") The author partly agrees.
- Left standing — the author raises it and never returns. This is genuinely ambiguous, and correct answers will reflect that ambiguity rather than resolving it.
Job Two: Assessing Reasoning for Soundness
The test does not require formal logic terminology, but it does require recognizing when a conclusion outruns its support. The recurring patterns:
Hasty generalization. A small or non-representative sample supports a sweeping conclusion. Three restaurants on one street adopted the app, therefore the industry is adopting it.
Correlation as causation. Covered at length in the relationships material, and it reappears here as a reasoning flaw rather than a comprehension trap.
False dilemma. Two options are presented as exhaustive when others exist. Either the college raises tuition or it closes the nursing program.
Circular reasoning. The claim reappears as its own evidence. The policy is necessary because without it we would lack a needed policy.
Equivocation. A key term shifts meaning mid-argument. Natural meaning "occurring in nature" in the premise and "healthful" in the conclusion.
Appeal to inappropriate authority. A cited expert's credentials do not cover the claim at issue — a distinguished physicist testifying about monetary policy.
The Warrant Is Where Arguments Break
Because warrants are unstated, they are where flawed arguments hide. Reconstruct them explicitly:
Claim: The city should extend the light rail to the airport. Evidence: Ridership on the existing downtown line has grown 40% in four years. Warrant (unstated): Growth on an urban commuter route predicts demand on an airport route.
Stated plainly, that warrant is questionable — airport travel and daily commuting are different demand patterns with different peak times and luggage requirements. The evidence is true and the claim may even be correct, but the connection is weak. Questions asking what the argument "assumes" or what "most weakens" it are testing precisely this reconstruction.
Job Three: Evaluating Evidence
The crucial insight: evidence questions are almost never about whether the evidence is true. You are asked to accept the passage's factual assertions. What you evaluate is the fit between evidence and claim, along three axes:
| Axis | Question | Failure Mode |
|---|---|---|
| Relevance | Does this bear on the claim actually made? | Evidence about a related but different proposition |
| Sufficiency | Is there enough of it to carry a conclusion this strong? | One anecdote supporting a universal claim |
| Representativeness | Does the sample reflect the population claimed? | Volunteers, survivors, or self-selected respondents |
Worked Example
The superintendent argued that the new literacy curriculum had succeeded. She noted that among students who completed all thirty modules, reading scores rose an average of 14 percentile points.
The evidence is relevant and the number is substantial. Yet the argument has a specific defect: it measures only students who completed all thirty modules. Students who struggled and abandoned the curriculum are excluded from the sample entirely. The claim is about the curriculum's success; the evidence describes only its most persistent users. That is a representativeness failure — specifically survivorship bias — and an answer choice naming it would be correct even though every stated fact is accepted as true.
A useful habit: when a passage reports a favorable statistic, ask who is missing from this sample?
Question Stems and What They Are Really Asking
| Stem | Underlying Task |
|---|---|
| "The author's argument depends on which assumption?" | Reconstruct the warrant |
| "Which finding, if true, would most weaken...?" | Break the warrant or the representativeness |
| "The author responds to the counterclaim primarily by..." | Classify the rebuttal as answered, conceded, or ignored |
| "The evidence in lines 20–24 is most vulnerable to which criticism?" | Test relevance, sufficiency, representativeness |
Approach each of these by mapping the argument on scratch paper first — claim, evidence, warrant — before reading the choices. Answer choices in this category are written to sound reasonable in isolation; they are separable only against an explicit map.
A passage states: "Critics of the four-day school week contend that it harms working parents who must arrange additional childcare. Districts adopting the schedule, however, have reported no measurable decline in attendance or parental satisfaction." What has the author done with the counterclaim?
A researcher claims a wellness program reduced employee burnout, citing survey results from employees still enrolled in the program after twelve months. Which criticism most directly targets the evidence?
An author argues a university should expand online course offerings, citing that enrollment in its existing online summer courses grew 60% over three years. Which unstated assumption does this argument most depend on?