ACT Reading · Question Types

Main Idea & Central Purpose on the ACT: Every Question Type, Named and Explained

Recognize the Question Type — Signal Phrases

“The main idea of this passage…” → what the passage argues or shows

“The primary purpose of this passage…” → what the author intends to accomplish

“This passage is primarily concerned with…” → what most of the passage is about

“The central claim of the author…” → the author’s controlling assertion

Main idea questions are extremely common on the ACT Reading section. You will see these questions on test day.

Students get Main Idea questions wrong because they fall for one of four traps: Too Narrow, Too Broad, True-But-Not-The-Point, and Direct Contradictions. You will see these traps on test day, and if you don’t see them coming, you will miss out on easy points.

The Four Wrong-Answer Trap Types — ACT Main Idea Questions

Too NarrowDescribes one paragraph or detail, not the whole passage

Too BroadCorrect topic, but vague — captures subject, not argument

True-But-Not-The-PointFactually supported, but not what the passage is primarily doing

Opposite/DistortedContradicts the author’s actual position or reverses the argument

Question types and skills covered in this guide

Question Type / Skill	Named Method	Frequency
Main idea vs. central purpose — the key distinction	The What + Why Test	High
Eliminating wrong answers — the four trap types	The Trap-Name Elimination	Very High
When two choices both seem right — the scope test	The Every-Paragraph Check	Low
Where to look: first and last paragraphs as anchors	The Open-and-Close Scan	Medium
Dual passages — synthesizing central purpose across two authors	The Author-by-Author Split	Medium

Type 1

Main Idea vs. Central Purpose — The Key Distinction

Very High Frequency

The ACT uses two related but distinct question phrasings. Main idea questions ask what the passage is saying — what claim or finding or story is the author presenting? The answer describes the content of the passage. Central purpose questions ask what the author is trying to do — what is the author’s intent or goal in writing this? The answer describes the author’s action. In practice, the distinction is: main idea answers tend to describe content, while central purpose answers tend to use active verbs like “argue,” “trace,” “challenge,” “describe,” “illustrate,” or “compare.”

On many passages, especially in Social Science and Natural Science, the main idea and central purpose point to the same answer. But on Humanities and Literary Narrative passages, where the author’s purpose (to illuminate, to examine, to complicate) may differ from the content (a memoir about grief), distinguishing between the two phrasings matters.

Named Method

The What + Why Test

After reading a passage, complete two sentences before looking at the answer choices. Sentence 1 (for main idea): “This passage is about [topic] + [what the author says about it].” Sentence 2 (for central purpose): “The author wrote this in order to [active verb] + [object].” The verb in Sentence 2 is the key — it distinguishes “argue that X causes Y” from “describe how X works” from “challenge the assumption that X is inevitable.”

Example: A passage about ocean migration patterns that argues existing tracking models are inadequate. Main idea answer: “The methods scientists currently use to track ocean migration are insufficient.” Central purpose answer: “To argue that current migration-tracking technology fails to capture the complexity of migratory patterns.” Note the active verb (“argue”) in the purpose answer and its absence in the main idea answer.

✓ Strong central purpose answer — uses active verb

“To challenge the prevailing assumption that jazz evolved independently of classical European music by tracing documented exchanges between the two traditions” Active verb “challenge” + specific claim = central purpose ✓

✗ Too Broad — topic without argument

“The relationship between jazz and classical European music” TOO BROAD Names the topic. Says nothing about what the author does with it. ✗

ACT-style practice question

Social Science — adapted passage excerpt For decades, economists assumed that consumer decisions were driven primarily by rational self-interest. Recent behavioral research has fundamentally disrupted this model. Studies now demonstrate that factors such as social comparison, loss aversion, and the framing of choices exert powerful and predictable influences on financial behavior — influences that the rational-actor model cannot account for. The author contends that incorporating these findings into economic policy is not merely advisable but urgent, given the gap between how models predict consumers will behave and how they actually do.

The primary purpose of this passage is to:

A. summarize the history of behavioral economics as a field.

B. describe the specific experiments that revealed loss aversion in consumers.

C. argue that behavioral research findings should urgently inform economic policy.

D. explain how consumer behavior and rational self-interest are related.

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Type 2

Eliminating Wrong Answers — The Four Trap Types

Very High Frequency

On main idea and central purpose questions, every wrong answer belongs to one of four trap types. Naming the trap type as you eliminate each choice is faster and more reliable than trying to decide whether each choice “feels right.” The four traps are: Too Narrow (covers only part of the passage — one paragraph, one example, one argument), Too Broad (covers the general topic but misses what the author actually does with it), True-But-Not-The-Point (a claim the passage supports but which is secondary to the main argument), and Opposite/Distorted (contradicts the author’s actual position).

Two traps appear most often: Too Narrow and Too Broad. The ACT designs wrong answers around these patterns because they use real words from the passage and feel plausible. The test for Too Narrow: does this answer describe only one section of the passage? The test for Too Broad: does this answer describe the topic without capturing the author’s specific argument?

Named Method

The Trap-Name Elimination

For each wrong answer, write the trap type name next to it before moving on: TN (Too Narrow), TB (Too Broad), TP (True-But-Not-The-Point), OD (Opposite/Distorted). This forces you to articulate why the answer is wrong rather than relying on feel. It also prevents second-guessing: once you have labeled an answer TN and confirmed it, you don’t return to it.

The diagnostic question for each trap: Too Narrow — “If I changed this answer to the main idea, would the passage need to be about half its current length?” Too Broad — “Could this answer apply to hundreds of other passages on the same topic?” True-But-Not-The-Point — “Is this claim in the passage but secondary to what the passage is primarily doing?” Opposite/Distorted — “Would the author disagree with this answer?”

✗ Too Narrow — one section only

Passage: argues that schools should restructure their testing practices.

Wrong answer: “Standardized tests fail to measure creativity.” TOO NARROW True, but one sub-point. The passage’s scope is broader.

✗ True-But-Not-The-Point

Passage: argues that schools should restructure testing practices.

Wrong answer: “Testing creates stress for students.” TRUE-NOT-POINT May be in the passage, but as evidence — not the claim.

ACT-style practice question

Humanities — adapted passage excerpt The skyscraper, often regarded as a symbol of modern ambition, was shaped as much by financial constraint as by architectural vision. Early builders did not set out to create towers; they set out to maximize return on expensive urban land. Vertical construction was the pragmatic answer to a land-cost problem. Yet the architects who accepted this challenge transformed necessity into art — developing new materials, new engineering techniques, and an aesthetic language that redefined what a building could be. To reduce the skyscraper to a purely economic phenomenon is to misread its history; to see it as purely artistic is equally incomplete.

The main idea of this passage is that:

A. skyscrapers were invented because urban land in major cities became prohibitively expensive.

B. the skyscraper resulted from the interplay of economic pressures and artistic ambition, and cannot be fully understood through either lens alone.

C. architecture and economics have always influenced each other throughout history.

D. modern buildings reflect the values of the societies that build them.

Type 4

When Two Choices Both Seem Right — The Scope Test

High Frequency

When two answer choices both seem to describe the passage correctly, the distinction almost always comes down to scope: one answer describes the entire passage and the other describes only part of it. The correct answer must account for every major section of the passage, not just the section the student spent the most time on or the section that appears latest. The wrong answer is accurate but incomplete — it fits some of the passage but cannot account for all of it.

A secondary distinction: when two choices are at the same scope level, check the author’s stance. One answer may describe what the passage covers, while the other also captures the author’s evaluative position. The one that includes both the subject and the author’s claim about it is almost always correct.

Named Method

The Every-Paragraph Check

When two answer choices both seem plausible, test each one against every paragraph of the passage: “Does this answer account for what this paragraph is doing?” Go paragraph by paragraph, quickly. The answer choice that fits all paragraphs is the correct one. The answer choice that does not fit one or more paragraphs is Too Narrow — it describes only the section you checked against first.

This method works because main idea questions are explicitly asking for the whole passage’s central point. A correct main idea answer must be broad enough to encompass every section but specific enough to capture the author’s actual argument. If an answer choice cannot account for even one paragraph, it fails the “whole passage” requirement.

✓ Passes the Every-Paragraph Check

Passage on urban heat islands: para 1 — defines problem, para 2 — causes, para 3 — current solutions, para 4 — why solutions are insufficient.

Answer: “Urban heat islands pose an unsolved problem that current approaches have failed to adequately address.” ✓ Each paragraph contributes to this claim.

✗ Fails para 1–2 — Too Narrow

Same passage. Wrong answer: “Current solutions to urban heat islands, such as green roofs, are insufficient.” TOO NARROW Only covers paras 3–4. Ignores definition and causes in paras 1–2.

ACT-style practice question

Natural Science — adapted passage excerpt Coral reefs have long been studied as ecosystems of extraordinary biodiversity. For decades, researchers focused on cataloguing the species they contain. More recent work, however, has shifted attention to the structural relationships between those species — specifically, how certain “keystone” species regulate the health of the entire reef system. Remove the keystone, and the reef’s diversity collapses. This finding has transformed how conservationists prioritize their interventions: rather than protecting as many species as possible, they now concentrate resources on identifying and safeguarding the small number of species whose presence underpins the whole.

The main idea of this passage is:

A. coral reefs are among the most biodiverse ecosystems on the planet.

B. recent research on keystone species has shifted reef conservation from broad species protection toward targeted preservation of structurally critical species.

C. keystone species play an important role in maintaining reef biodiversity.

D. scientists should catalog the species living in coral reef ecosystems.

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Type 5

Where to Look — First and Last Paragraphs as Anchors

High Frequency

The main idea and central purpose of a passage are almost always signaled in the first and last paragraphs. The first paragraph introduces the subject and often frames the author’s approach or stakes a claim. The last paragraph draws a conclusion, restates the thesis, or delivers the “so what.” For main idea and central purpose questions, reading these two anchors carefully — before or after skimming the middle — gives you enough information to answer most questions correctly.

An important secondary anchor: the sentence immediately after any major transition phrase (“However,” “But,” “Despite this,” “In contrast,” “Yet”) often carries the author’s actual position — it is the turn where the author shifts from summarizing a view to asserting their own. These transition sentences are disproportionately likely to contain the claim the main idea or central purpose answer will express.

Named Method

The Open-and-Close Scan

Before answering a main idea or central purpose question, scan three locations in order: (1) the first paragraph — what is introduced? (2) the last paragraph — what conclusion is reached? (3) any sentence beginning with “However,” “But,” “Yet,” “In contrast,” or “Despite” — what turn does the argument make? The intersection of these three signals is usually sufficient to construct a main idea before looking at the answer choices. Write a three-to-five word summary of what the passage is doing before reading the choices — this prevents the choices from anchoring your thinking to a wrong direction.

One caution: for Literary Narrative passages, the first paragraph often establishes setting or situation rather than argument. For these passages, weight the last paragraph’s revelation more heavily in your Open-and-Close Scan — the insight or shift in understanding almost always appears at the end, not the beginning.

✓ Transition sentence carries the main claim

Passage opening: describes how traditional navigation assumes GPS accuracy.

Transition sentence: “However, recent disruptions to GPS signals near conflict zones have exposed a dangerous over-reliance on satellite navigation.” The “However” sentence carries the central claim — GPS over-reliance is dangerous. ✓

✗ Mid-passage detail mistaken for main idea

A student reads the middle paragraphs most carefully and concludes the main idea is “GPS disruption occurs near conflict zones.” TOO NARROW That’s an example supporting the main claim, not the claim itself.

ACT-style practice question

Social Science — adapted passage excerpt Most studies of political polarization measure how far apart the parties have drifted on policy positions. These studies are rigorous and well-designed. Yet they may be measuring the wrong thing. Policy distance is easy to quantify, but it does not capture what many researchers now believe is the more dangerous phenomenon: affective polarization — the degree to which members of opposing parties dislike and distrust each other. You can disagree sharply on tax rates and still cooperate. But when citizens view the other party not as wrong but as threatening, cooperation becomes structurally impossible. The author concludes that addressing affective polarization — not policy gaps — is the prerequisite for any meaningful democratic recovery.

The central purpose of this passage is to:

A. explain the methodology researchers use to measure political polarization.

B. describe the historical roots of political division in democratic societies.

C. argue that emotional hostility between political groups is more corrosive to democracy than differences in policy positions.

D. compare different academic definitions of political polarization.

Correct answer: C — “argue that emotional hostility between political groups is more corrosive to democracy than differences in policy positions.”

Apply the Open-and-Close Scan. First paragraph: introduces standard polarization research (policy distance). Key transition: “Yet they may be measuring the wrong thing.” — this is the turn where the author’s actual position begins. Last sentence: explicitly states that affective polarization must be addressed first. C captures this: active verb “argue” + the specific claim (emotional hostility is more corrosive than policy distance). The Open-and-Close Scan reveals the structure in under 30 seconds: setup → pivot → claim.

A is wrong TRUE-BUT-NOT-THE-POINT — The passage briefly acknowledges that studies measuring policy distance are “rigorous and well-designed,” but this is acknowledgment of the target the author is about to pivot away from. The author’s purpose is not to explain that methodology — it is to argue that a different measurement (affective polarization) matters more. A describes the background, not the argument.
B is wrong TOO BROAD / OPPOSITE — The passage does not discuss historical roots of division at all. This answer imports a historical framing that is absent from the passage. It also implicitly suggests the passage takes a retrospective orientation (where division came from), when the passage is entirely forward-looking (what to address to recover democracy). When an answer describes something the passage never mentions, eliminate it quickly.
D is wrong TOO NARROW — The passage mentions two concepts (policy distance and affective polarization) and argues that one is more important than the other — this is not a comparison of definitions. Academic definitions are not the subject of any part of the passage. An answer that describes the passage as a definitional comparison misreads it as a survey when it is an argument.

Type 6

Dual Passages — Synthesizing Central Purpose Across Two Authors

Medium Frequency

The ACT Reading section includes one paired passage set — two shorter passages on a related topic, written by different authors, often from different perspectives. Questions that ask about the “central purpose” or “main idea” of the paired set as a whole require synthesizing what both passages are doing, not just one. The correct answer for a synthesis question must account for both authors’ contributions without privileging one over the other.

When two authors address the same topic with different stances, the relationship between them is the main idea: they agree on X but disagree on Y, or Author 1 argues X while Author 2 complicates X, or both authors arrive at the same conclusion by different paths. An answer that describes only one author’s argument fails the synthesis requirement the same way a Too Narrow answer fails the Every-Paragraph Check.

Named Method

The Author-by-Author Split

Before answering any dual-passage question, write two brief summaries — one per author — using the What + Why Test format: “Author 1 argues/describes/questions ___ in order to ___.” “Author 2 argues/describes/questions ___ in order to ___.” Then, for synthesis questions, look for the answer that correctly captures both summaries and their relationship. Three common relationships: same topic, opposite positions (argument/counterargument); same topic, different focuses (breadth vs. depth, theory vs. practice); same topic, complementary angles (builds on each other).

A common trap on dual-passage synthesis questions: answers that correctly describe one author but misrepresent the other, or that describe the two authors as agreeing when they disagree (or vice versa). Use the Author-by-Author Split summaries as a check — does this answer match both summaries? If not, eliminate it.

✓ Synthesis answer — correctly represents both

Passage 1: argues that social media amplifies political extremism.
Passage 2: argues that social media’s effects on politics are overstated.

Strong synthesis: “Both passages examine the political effects of social media but reach opposing conclusions about their severity.” ✓

✗ Only represents one author

Same passages. Wrong answer: “The primary purpose of both passages is to argue that social media amplifies political extremism.” TOO NARROW This only describes Passage 1. Passage 2 argues the opposite. ✗

ACT-style practice question

Dual Passage — Social Science (adapted excerpts) Passage AThe gig economy has expanded economic opportunity for millions of workers who value flexibility above job security. Critics who frame gig work as precarious employment miss a fundamental shift in worker preferences: for many, the autonomy of contract work outweighs the benefits of traditional employment.

Passage BProponents of the gig economy mistake a constrained choice for a free one. Workers who accept gig arrangements often do so not from preference but from necessity — because traditional employment in their sector has dried up. Describing this as a preference for flexibility obscures the structural conditions that eliminate the alternative.

The central purpose of both passages taken together is to:

A. document the growth of gig work as a percentage of the total labor market.

B. present contrasting interpretations of why workers participate in gig employment.

C. argue that gig workers deserve better legal protections from employers.

D. explain the historical conditions that gave rise to the gig economy.

Correct answer: B — “present contrasting interpretations of why workers participate in gig employment.”

Apply the Author-by-Author Split. Author A argues: workers choose gig work because they genuinely prefer autonomy — framing it as a preference. Author B argues: workers choose gig work because traditional employment has disappeared — framing the same choice as structural constraint. Both passages address the same question (why workers enter gig work) and reach opposite conclusions (genuine preference vs. constrained necessity). B captures both summaries and their relationship precisely. “Contrasting interpretations” is the exact relationship between them.

A is wrong TRUE-BUT-NOT-THE-POINT — Neither passage discusses labor market statistics or the growth of gig work as a share of employment. Both passages are argumentative — they interpret the causes of gig participation, not its quantitative scope. When an answer choice describes data or statistics a passage never mentions, eliminate it immediately.
C is wrong TOO NARROW / DISTORTED — Legal protections are never mentioned in either passage. This answer imports a common policy conclusion that follows from discussions of gig work but which neither author argues. Passage B criticizes the framing of gig work as preference; it does not call for legal reform. Answers that describe what someone might conclude from a passage but that the passage itself does not say are True-But-Not-The-Point traps.
D is wrong TOO BROAD / DISTORTED — Neither passage discusses historical origins of the gig economy. Passage A briefly implies gig work reflects a shift in preferences; Passage B mentions that traditional employment “has dried up” — but neither passage traces the historical conditions that produced this situation. This answer describes a different kind of passage entirely (historical analysis) rather than what these two argumentative passages do.

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Quick-Reference Summary: All 5 Main Idea & Central Purpose Skills

Skill / Question Type	Named Method	The One Move Students Miss	Frequency
Main idea vs. central purpose	The What + Why Test	Completing a purpose sentence with an active verb before reading answer choices	Very High
Eliminating wrong answers	The Trap-Name Elimination	Naming the trap type (TN/TB/TP/OD) rather than relying on feel to eliminate	Very High
When two choices both seem right	The Every-Paragraph Check	Testing each finalist against every paragraph — the correct answer accounts for all of them	High
First and last paragraph anchors	The Open-and-Close Scan	Scanning first para, last para, and transition sentences before reading answer choices	High
Dual passages — synthesis	The Author-by-Author Split	Writing a one-sentence summary for each author before approaching the synthesis question	Medium

How to Approach Main Idea & Central Purpose Questions on Test Day

Tip 1 — Formulate Your Own Answer Before Reading the Choices

Before reading the four answer choices for a main idea or central purpose question, write a brief sentence of your own describing what the passage is primarily doing. Three to five words is enough: “argues GPS over-reliance is dangerous” or “traces jazz’s European influences.” Then find the answer choice that best matches your formulation. Students who read the choices first are vulnerable to anchoring — the choices shape their understanding of the passage rather than the passage shaping their evaluation of the choices. This reversal is one of the most reliable ways to get pulled toward the Too Broad or True-But-Not-The-Point traps.

Tip 2 — The Correct Answer Has Both a Subject and a Verb About What the Author Does

A strong main idea or central purpose answer always has two components: a subject (what the passage covers) and an active verb describing what the author does with that subject (argues, traces, challenges, illustrates, compares). Wrong answers typically have only one component. Too Broad answers have a subject but no meaningful verb. Too Narrow answers have a very specific subject and a verb that only applies to part of the passage. Check every finalist answer for both components before selecting it — and check that the verb matches what the passage actually does, not what you might expect a passage on that topic to do.

Tip 3 — For Literary Narrative, Ask “What Does the Narrator Understand at the End That They Didn’t at the Beginning?”

Literary Narrative passages on the ACT are the most challenging for main idea questions because they rarely state an explicit thesis. The main idea is almost always an insight, a realization, or a shift in understanding that occurs by the end of the passage. Instead of looking for an argument, look for the change: what does the narrator know, feel, or perceive differently at the end? The answer to that question is almost always the main idea. Wrong answers for Literary Narrative main idea questions are almost always Too Broad (generic themes like “family relationships are complex”) or True-But-Not-The-Point (plot-level details that support the insight but are not the insight itself).

Common Questions About ACT Main Idea & Central Purpose Questions

The passage is about climate change, and the answer I picked talks about climate change — so why is it wrong? +

Because the topic of a passage and its main idea are two different things. A passage about climate change could argue that the scientific consensus on climate change is stronger than political discourse suggests, or it could trace the history of climate modeling, or it could challenge a specific climate policy proposal. All three have the same topic — climate change — but completely different main ideas. An answer that says “the passage is about climate change” only tells you the topic. It tells you nothing about what the author is doing with that topic.

When you evaluate a main idea answer, always check for the verb — what is the author arguing, tracing, challenging, describing, comparing? An answer without an active claim about the author’s purpose is almost always a Too Broad trap. The ACT writes these answers specifically to catch students who identify the topic and stop there. The correct answer will have both a subject (the topic) and a claim (what the author does with the topic).

A quick test: ask yourself, “Could this answer apply to any other passage on this topic?” If yes, it is Too Broad. The correct answer should only apply to this specific passage, with this specific author’s argument.

How do I tell if a question is asking for the “main idea” vs. the “primary purpose”? Aren’t those the same thing? +

They are closely related but not identical. Main idea questions ask what the passage is saying — they describe the content or claim. Primary purpose questions ask what the author is trying to accomplish — they describe the author’s intent or action. The practical difference shows up in how the correct answer is phrased: main idea answers tend to be declarative statements (“The passage argues that X”), while primary purpose answers tend to use infinitive phrases with active verbs (“To argue that X,” “To trace the history of X,” “To challenge the assumption that X”).

On many passages, especially Social Science and Natural Science, the two questions point to the same answer. But on Humanities and Literary Narrative passages, the distinction sometimes matters. A Humanities passage about a painter might have a main idea of “Frida Kahlo’s self-portraits are autobiographical statements as much as artistic achievements” and a central purpose of “to argue that Frida Kahlo’s self-portraits should be read as political and personal statements, not merely as art objects.” The content is similar, but the framing differs.

The practical approach: for both question types, use the What + Why Test. Sentence 1 answers main idea questions; Sentence 2 answers primary purpose questions. When in doubt, look for the active verb in the answer choices. Primary purpose answers almost always begin with “To [verb]…” — and that verb is the clearest signal of what the author is doing.

For the fiction passage, there’s no real argument — so how do I even find a “central purpose”? +

You are right that Literary Narrative passages rarely have an explicit thesis or argument. But they do have a purpose — it is just that the purpose is to show rather than to argue. The author of a fiction or memoir excerpt is trying to illuminate something: a character’s inner conflict, a shift in a relationship, a realization about the past, a moment of loss or connection. The central purpose is what that showing is in service of.

The most reliable approach for Literary Narrative: ask “What changes between the beginning and the end?” Something always changes in these passages — the narrator’s perception, a relationship, an understanding of the past, an emotional state. The central purpose is almost always to trace, illuminate, or explore that change. The correct answer will describe the change and what it reveals, not just the setting or the events.

A useful framing: for non-fiction passages, the main idea is the central claim. For fiction passages, the main idea is the central insight — what the passage ultimately reveals or illuminates. Watch for the final paragraph. The ACT selects fiction excerpts that arrive at a moment of clarity, realization, or shift; that moment is almost always where the main idea is located. Wrong answers for fiction main idea questions are almost always Too Broad (general life lessons that could apply to any story) or True-But-Not-The-Point (accurate plot details that support the insight but aren’t the insight itself).

Two answer choices both seem to describe the whole passage. How do I choose between them when neither one is obviously wrong? +

Apply the Every-Paragraph Check. Go through each paragraph of the passage and ask: does this answer choice account for what this paragraph is doing? The correct answer will fit every paragraph. The wrong answer will fit most paragraphs but fail on one or two — often the first or last paragraph, which carry the framing and conclusion that Too Narrow answers tend to miss.

If both answers still seem to pass the Every-Paragraph Check, look at the verb and the level of specificity. One answer will have a more specific claim about the author’s argument; the other will be slightly vaguer or slightly narrower. The ACT correct answer is almost always the one that captures both the subject and the author’s specific evaluative stance — not just what the passage covers, but what the passage argues or concludes about what it covers.

A secondary technique: look for the answer that matches the last sentence of the passage most closely. The last sentence of an ACT passage almost always delivers the author’s conclusion — and the main idea answer almost always expresses that conclusion in different words. If one of your two finalist answers is a paraphrase of the last sentence and the other is not, choose the paraphrase.

How does the ACT test main idea in the newer shorter passage format? +

The ACT Reading section now has 36 questions (down from 40) across 4 passages, with one paired passage set replacing what was previously a standalone passage. Shorter passages mean that the main idea is more densely signaled — there is less filler, and the author’s purpose is often stated more directly. The Open-and-Close Scan becomes even more powerful on shorter passages because the gap between the first paragraph and the last is smaller, and the transition sentences stand out more clearly.

The wrong-answer trap patterns are unchanged — Too Narrow, Too Broad, True-But-Not-The-Point, and Opposite/Distorted still account for all wrong answers. But with shorter passages, the Too Narrow trap can be more tempting: a single paragraph of a short passage can feel like “most” of the passage when it is actually only one-third of it. The Every-Paragraph Check is especially important for shorter passages because students are more likely to overweight a single section.

The pacing change matters too. With 36 questions in 40 minutes, you have slightly more time per question than in previous formats. Use that extra time on main idea questions specifically — these are the questions that reward 15 extra seconds of paragraph-checking most reliably.