Following an Argument
Track what a writer claims, why the claim is supported, and how far it reaches.
By the end, you should be able to:
- Separate a passage's claim, evidence, and reasoning without losing their relationship.
- Track different viewpoints and preserve a writer's qualifications.
- Choose conclusions and evidence that match the passage's direction and scope.
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3.1 Claims, evidence, and reasoning
An argument is a supported claim; it need not describe a disagreement. The claim is what the writer wants you to accept. Evidence supplies observations, examples, quotations, or findings. Reasoning explains why that evidence supports that claim. Reasoning is sometimes unstated: your job is to recover the connection without adding a new theory.
Label relationships, not sentence positions. A claim can come first, last, or between pieces of evidence. A sentence can also perform two jobs, reporting a finding and explaining its significance. Ask, 'What does this detail help establish?'
W3.1: Finding the connection
The newly excavated vessels probably served as cooking pots. Their outer bases are blackened, and their interiors contain traces of grain. Repeated exposure to a cooking fire could account for the blackened bases, while the grain traces are consistent with food preparation.
Identify the claim, evidence, and reasoning.
Practice this lesson: 3.01, 3.05, 3.09.
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Answer: Claim: probable use as cooking pots. Evidence: blackened bases and grain traces. Reasoning: cooking could account for both observations.
- The first sentence interprets the objects' use; 'probably' limits certainty.
- The second reports physical observations. The third connects those observations to the proposed use.
- The passage supports an explanation; it does not prove that cooking was the vessels' only use.
Key takeaway: Preserve both the claim and its confidence level.
3.2 Observations, interpretations, and examples
An observation reports what was recorded. An interpretation explains its significance. An interpretation can be well supported without being certain. Do not reject it merely because it goes beyond a literal description; instead, check whether the evidence warrants that step.
An example makes a broader claim concrete. One example can establish that something occurs, or challenge a claim that it never occurs. It usually cannot establish how common something is. In literary analysis, distinguish what the text depicts from an interpretation of why that depiction matters.
W3.2: What a literary example establishes
The narrator praises the estate as a place of perfect harmony. Yet every description of its celebrations includes a servant silently repairing some damage. These recurring interruptions suggest that the novel unsettles, rather than simply repeats, the narrator's account of effortless order.
What connects the textual observation to the interpretation?
Practice this lesson: 3.06.
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Answer: Repeated scenes of repair complicate the narrator's description of effortless harmony.
- Observation: descriptions of celebrations repeatedly include repair work.
- Interpretation: the novel creates distance from the narrator's praise.
- The repetition supports a pattern. It does not establish that every character rejects the estate or that the novelist opposed all celebrations.
Key takeaway: An interpretation must explain a textual detail without outrunning it.
3.3 Contrast, concession, and qualification
A contrast identifies a difference. A concession accepts a point while explaining why it does not settle the issue. A qualification limits a claim: it might specify a group, circumstance, frequency, or degree of certainty. Missing a qualification often turns a defensible answer into an overstatement.
Words such as although, yet, and however flag relationships, but they do not mechanically identify the main point. Read both sides and ask what the second changes about the first. A writer may refine an earlier view rather than reject it.
W3.3: Preserving a limited claim
Although restoring the wetland did not increase the number of bird species recorded there, it increased nesting success among two resident species. The restoration therefore produced a measurable benefit, even if it did not improve every measure of ecological recovery.
State the conclusion without losing its qualification.
Practice this lesson: 3.07.
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Answer: The restoration benefited two resident species' nesting success, though recorded bird species counts did not rise.
- Concession: one measure, the species count, did not improve.
- Evidence for a benefit: nesting success improved for two species.
- The conclusion allows mixed results. Neither 'complete success' nor 'no ecological benefit' preserves the passage.
Key takeaway: A failed measure does not erase a different measured benefit.
3.4 The author's view and other voices
Passages often report a view before challenging or modifying it. Attribute each important claim: who says this? A quoted expert, earlier critic, narrator, and passage author may hold different positions. Reporting a position does not establish agreement with it.
Watch verbs such as argued, assumed, questioned, and conceded. Then identify the author's response. It may accept the evidence but reject the explanation, accept part of a position, or leave competing explanations unresolved.
W3.4: Accepting a finding, disputing its explanation
Early historians attributed the town's declining exports to a shortage of skilled workers. Recent research confirms the decline but finds that skilled labor remained sufficient to meet the town's needs. Port records instead show a sharp rise in shipping charges, making transport costs a more plausible explanation.
What does the passage retain, and what does it challenge?
Practice this lesson: 3.03, 3.08, 3.14.
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Answer: It retains the finding that exports declined but challenges the workforce explanation, favoring higher transport costs.
- Earlier historians: export decline caused by worker shortage.
- Recent research: decline confirmed; skilled labor remained sufficient; shipping charges rose.
- The author's preference is comparative: 'more plausible' favors one explanation without claiming it is conclusively proven.
Key takeaway: Agreement about what happened is not agreement about why.
3.5 Testing the inferential link
For a proposed explanation, predict what you would expect before evaluating a result. Check the compared groups, changed factor, measured outcome, and direction of the finding. Relevant evidence must bear on the actual claim, not merely mention the same topic.
An association alone does not establish causation: another factor may affect both variables, or the direction may be reversed. Random assignment helps reduce preexisting group differences; a useful comparison holds other important conditions similar. Even a strong experiment may support an effect without establishing its mechanism or its reach beyond the tested conditions.
W3.5: Effect versus mechanism
Researchers randomly assigned seedlings of one species to nutrient solution with or without compound R. Other growing conditions were kept alike. After four weeks, seedlings receiving R were taller on average. The researchers proposed that R increased height by improving water uptake.
Which conclusion is supported, and which needs additional evidence?
Practice this lesson: 3.04, 3.11, 3.15.
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Answer: The experiment supports an effect of R on height under the tested conditions. Improved water uptake remains an untested explanation of that effect.
- Changed factor: R. Comparison: no R. Measured outcome: height.
- The design helps separate R's effect from other growing conditions.
- Water uptake was not measured. Taller seedlings also do not establish benefits for every species, survival, or crop yield.
Key takeaway: Match evidence to the measured outcome before accepting a mechanism.
3.6 Conclusions, main points, and purposes
The topic names the subject. The main point states the passage's central message about that subject. The purpose describes what the passage does: explain a finding, challenge an interpretation, compare approaches, or qualify a claim. A local detail's function is its contribution to that larger task.
Before reading answer choices, finish: 'The writer uses ___ to show ___.' For an inference or logical completion, follow the established direction and retain essential limits. Choose the best-supported next step, not a merely possible extension. Do not assume that the most cautious-sounding choice is correct; it must still capture the passage's substance.
W3.6: Separating subject from message
Researchers once dismissed household inventories as unreliable evidence of reading because owning a book does not prove reading it. That limitation remains. Nevertheless, inventories reveal which texts households could access, making them useful for studying reading opportunities rather than individual reading habits.
Identify the topic, main point, and purpose.
Practice this lesson: 3.10, 3.12.
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Answer: Topic: household inventories. Main point: inventories can reveal access to books despite not proving actual reading. Purpose: qualify a dismissal by identifying a narrower valid use.
- The passage accepts the original limitation.
- It then distinguishes actual behavior from opportunity.
- The author's contribution is this narrower use, not the broad claim that inventories reliably reveal reading habits.
Key takeaway: The best main point captures the relationship between the passage's parts.
Independent practice
Keep these checks in mind
- Map the argument: claim, supporting evidence, and the connection between them.
- Track voices and preserve limitations such as some, under these conditions, and may.
- For research claims, check the comparison, measured outcome, and proposed mechanism separately.
- Choose an answer that captures the passage's relationships and scope, not merely its vocabulary.
Begin with four short drills, then complete twelve multiple-choice questions. Difficulty increases within the set. For every multiple-choice answer, identify a decisive clue and explain why the closest alternative fails.
These four written drills are ungraded. Write your reasoning before opening each model answer.
Drill 3.01
The jars were probably traded between settlements. Their clay matches a deposit 80 kilometers away. Transport of finished jars would explain that material's presence at this site.
Label each sentence: claim, evidence, or reasoning.
Write a brief answer and identify the words that justify it.
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Argument roles
Answer: 1: claim. 2: evidence. 3: reasoning.
The clay match supports a distant source for the material. The final sentence offers a possible connection to trade, but raw clay could have traveled, and finished jars could have moved without being traded.
If you missed it: Ask what is proposed, what is observed, and what connects them.
Drill 3.02
Three diary entries show that some factory workers attended evening lectures.
Does this establish that most factory workers attended? Explain.
Write a brief answer and identify the words that justify it.
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Scope
Answer: No. It establishes attendance by some workers, not its prevalence among all workers.
Examples demonstrate occurrence. A claim about 'most' requires evidence about the broader population.
If you missed it: Compare the evidence's population with the claim's population.
Drill 3.03
Critics call the ending optimistic because the siblings reunite. The reunion occurs, but their final exchange leaves the original conflict unresolved.
What does the writer accept, and what interpretation is challenged?
Write a brief answer and identify the words that justify it.
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Viewpoint tracking
Answer: The writer accepts that the siblings reunite but challenges treating that reunion as sufficient evidence of an optimistic ending.
The disagreement concerns the event's significance, not whether it happened.
If you missed it: Separate agreement about an event from agreement about its meaning.
Drill 3.04
Students who voluntarily joined a writing club improved more than students who did not join.
Give one reason this comparison alone cannot establish that joining caused the improvement.
Write a brief answer and identify the words that justify it.
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Causal restraint
Answer: Students who joined may have been more motivated to practice writing even without the club.
Self-selection permits preexisting differences. Other relevant explanations are acceptable; identifying one does not prove the club had no effect.
If you missed it: Ask whether groups differed before the proposed cause.