- A narrator says, "By the time the line moved, I had aged a decade and memorized every tile on the floor." This suggests that:
Answer: the wait felt extremely long and dull
Both exaggerations, aging a decade and memorizing every tile, are hyperbole showing the wait felt endless and boring. Saying years passed is tempting only if the exaggeration is read literally instead of as a complaint.
- Which of the following best describes a flaw in the author's reasoning?
Answer: It generalizes from one park's outcome to all parks without considering ecological and human-context differences that affect results.
The author argues that reintroducing wolves to national parks will restore ecosystem balance based on evidence from one park where wolf reintroduction led to deer population decline and vegetation recovery. The author concludes wolf reintroduction will "reliably restore balance in any park with overbrowsing." This reasoning generalizes from one park's specific outcome to all parks without considering that ecological and human-context differences significantly affect wildlife reintroduction success: habitat types, prey species diversity, predator-prey ratios, human land use patterns, and park management policies all vary between locations and influence whether wolf reintroduction produces similar results. Choice B correctly identifies this flaw: generalizing from one park's outcome without considering ecological and human-context differences. The other choices misrepresent the argument—it doesn't assume predators increase prey populations (D), doesn't argue wolves are dangerous (C), and doesn't deny vegetation can respond to browsing changes (A). When evaluating ecological intervention arguments, consider whether results from one ecosystem can reliably predict outcomes in different environmental and management contexts.
- Which of the following best describes a flaw in the author's reasoning?
Answer: It extrapolates from a modest, short‑term sleep measure to sweeping health outcomes without providing supporting evidence.
The author argues that blue-light-blocking glasses should be recommended to all adults based on a study of 24 participants who fell asleep 10 minutes faster when wearing the glasses. The author then leaps to claiming the glasses "substantially improve overall health" because better sleep "prevents most chronic disease." This reasoning commits a major flaw by making sweeping health claims based on minimal evidence—a small sample size, modest effect (10 minutes), and no direct evidence linking this specific change to chronic disease outcomes. The argument extrapolates far beyond what the data supports, moving from a narrow sleep-onset measure to broad health recommendations without providing supporting research. Choice A correctly identifies this flaw: extrapolating from modest, short-term sleep measures to sweeping health outcomes without supporting evidence. The other choices misrepresent the reasoning—it doesn't dismiss all sleep research (B), doesn't focus on honesty verification (C), and doesn't argue about fashion trends (D). When evaluating health claims, assess whether the evidence magnitude matches the scope of conclusions drawn.
- Which statement, if true, would most strengthen the author's argument?
Answer: In multiple comparable cities, similar dance festivals produced measurable net increases in tourism spending beyond baseline seasonal trends.
The author generalizes from one festival with 30,000 attendees and one week of higher restaurant sales to the sweeping claim that dance funding "reliably" boosts local economies. Evidence that similar dance festivals in multiple comparable cities produced measurable net increases in tourism spending beyond baseline seasonal trends fixes both weaknesses at once: it shows the effect repeats across places rather than happening once, and it separates festival-driven spending from money the city would have taken in anyway. The finding that most attendees were local residents who would have spent money in the city regardless does the opposite, since it explains away the restaurant sales without any economic gain. The observation that libraries provide quiet study space during exam periods and the complaint that contemporary dance is hard to appreciate without background in modernist aesthetics say nothing about economic impact, so neither supports the funding conclusion. To strengthen a policy argument, look for evidence that the intervention itself produces the claimed benefit, repeatedly and above baseline.
- Which statement, if true, would most strengthen the researcher's argument?
Answer: Traffic counts on major roads parallel to the new line declined substantially after the line opened, while industrial emissions remained stable.
The researcher claims public transportation expansions reduce air pollution based on a correlation between a new subway line opening, increased ridership (60,000 trips), and reduced particulate pollution (8% decrease at downtown monitors). To strengthen this causal claim, the researcher needs evidence that subway ridership actually replaced car trips rather than representing new travel demand or shifts from other transit modes. Choice A provides exactly this evidence: traffic counts on parallel roads declined substantially while industrial emissions remained stable, suggesting the subway genuinely reduced vehicle traffic and associated emissions. Choice B about rider preferences, Choice C about pollution sources, and Choice D about public art don't support the causal mechanism. Strong environmental causal arguments require evidence that the proposed intervention actually changed the hypothesized behavior (car use reduction) rather than just correlating with desired outcomes.
- In "The bridge opened on time, under budget, and to no traffic at all," the final phrase mainly serves to:
Answer: undercut the praise with an ironic twist
The sentence builds a list of successes and then ends with 'no traffic at all,' an anticlimax that makes the achievement look pointless. Reading it as praise for efficiency misses how the last phrase turns against the first two.
- The repeated phrase "I learned" at the start of several sentences primarily functions to:
Answer: accumulate a series of informal experiences into a cumulative picture of self-taught mastery
The anaphoric repetition of "I learned from..." across distinct experiences (staring at a wall, ruining canvases, watching her grandmother, failing quietly) builds a cumulative sense of varied, informal sources shaping a self-taught skill. (A) is unsupported; the opening line is matter-of-fact, not resentful. (C) is contradicted, since the grandmother is only one of several named sources. (D) is contradicted by "ruining four canvases before the fifth one held together," which frames failure as productive, not worthless.
- The author's conclusion relies on which of the following assumptions?
Answer: Lonelier individuals are not more likely to use social media heavily as a response to their loneliness.
The columnist argues that social media use causes loneliness based on a correlation between heavy social media use (3+ hours daily) and higher loneliness scores in a 2,000-person survey. The author concludes that reducing social media time will reduce loneliness. This causal claim faces a critical assumption about the direction of causality: the author must assume that social media use leads to loneliness rather than loneliness leading to increased social media use as a coping mechanism. Choice D correctly identifies this crucial assumption—that lonelier individuals don't use social media more heavily in response to their loneliness. Choice B about platform uniformity, Choice C about measurement methods, and Choice A about free time availability don't address the core directionality assumption. When evaluating correlational arguments for causation, always consider whether the proposed cause and effect might be reversed.
- "The coach didn't just encourage the team; she ignited them." The word "ignited" suggests the coach's effect on the team was:
Answer: sudden and energizing
The metaphor 'ignited,' set against the milder 'encourage,' conveys a sudden burst of energy and passion. Reading it as destructive applies the literal danger of fire, which the praising context rules out.
- The rhetorical question in lines 9-11 primarily functions to:
Answer: expose a contradiction between a common belief and the historical pattern the author has described
The question—why do cities keep widening roads "without ever arriving at the relief they were promised"—is not a literal request for information but a rhetorical device that sharpens the contradiction between the popular belief (more lanes solve congestion) and the repeated failure just described. (A) mistakes the rhetorical question for a literal proposal. (C) is wrong; the author is not uncertain, immediately asserting the pattern is "structural." (D) reverses the passage's point, which discredits rather than validates commuters' assumption.
- Which statement, if true, would most strengthen the report's conclusion?
Answer: In a follow-up trial where irrigation was held constant across plots, the fertilized plots still produced higher yields.
The report claims a new fertilizer increases tomato yield based on a 12% weight increase in fertilized plots. However, the fertilized plots also received 20% more irrigation because their soil dried faster, creating a confounding variable that could explain the yield increase independently of the fertilizer. For the conclusion to be valid, the fertilizer effect must be separated from the irrigation effect. Choice A provides exactly this separation: a follow-up trial where irrigation was held constant across plots still showed higher yields in fertilized plots, isolating the fertilizer's effect and ruling out irrigation as the primary cause. Choice C about tomato consumption, Choice B about farmer preferences, and Choice D about packaging instructions don't address the confounding variable problem. When evaluating experimental claims, look for evidence that isolates the proposed causal factor from potential confounders.
- Which of the following best describes a flaw in the author's reasoning?
Answer: It relies on an emotional preference for print and offers no evidence that the medium, rather than distractions, produced the score difference.
The author argues that printed books improve critical thinking compared to e-books, citing a study where students reading printed essays scored higher on analysis rubrics than those reading on tablets. The author concludes print "inherently" promotes deeper reasoning because it "feels more serious." This reasoning commits a fundamental flaw by assuming the medium itself caused the performance difference without ruling out alternative explanations. The study didn't control for distractions—tablet users might have faced notifications, pop-ups, or other digital interruptions that impaired concentration and performance. The author's explanation relies on subjective feelings rather than evidence about cognitive mechanisms. Choice D correctly identifies this flaw: relying on emotional preference while offering no evidence that the medium, rather than distractions, produced the difference. The other choices misrepresent the argument—it doesn't assume all students dislike tablets (B), doesn't reject rubric-based measurement (C), and doesn't focus on cost considerations (A). When evaluating arguments about media effects, consider whether confounding variables were properly controlled.
- Which statement, if true, would most weaken the author's argument?
Answer: In the study, participants who wore clear placebo glasses reported sleep improvements nearly identical to those wearing blue-light-blocking glasses.
The author claims blue-light-blocking glasses improve sleep based on personal experience and a small study of 18 participants showing increased self-reported sleep quality. The argument relies heavily on subjective reports and lacks proper experimental controls. The strongest challenge would be evidence suggesting placebo effects—if participants improved simply because they believed the glasses would help, rather than from blue-light blocking itself. Choice D provides exactly this challenge: participants wearing clear placebo glasses reported nearly identical sleep improvements, suggesting the benefits result from expectation rather than blue-light blocking. This undermines the causal mechanism the author proposes. Choice C about visual preferences, Choice B about blue light's nature, and Choice A about communication needs don't directly challenge the causal claim. When evaluating studies with subjective outcomes, consider whether control groups rule out placebo effects.
- The comparison of the reef to "a sprawling city" primarily serves to:
Answer: help the reader picture the complexity and functional organization of the reef's ecosystem
The extended city analogy (avenues, tollbooths, apartment buildings) makes the reef's intricate, functioning organization vivid and concrete for the reader. (A) is never argued; no efficiency comparison is made. (B) is contradicted by "No architect drew the blueprint," which stresses the absence of deliberate planning. (D) overreaches; the passage attributes the structure to accumulated biological processes, not intelligence.
- The author's acknowledgment that echolocation is "functionally similar to vision" primarily serves to:
Answer: concede a partial similarity before qualifying it with an important distinction
The passage grants that echolocation is "functionally similar to vision," then immediately qualifies this with "Still, the comparison breaks down under scrutiny," detailing how discrete pulses differ from continuous images—a concession followed by a distinguishing qualification. (A) is contradicted by the very breakdown the passage describes. (C) is wrong; the author supports the researchers' nuanced position rather than undermining it. (D) is never claimed; the passage compares the mechanisms of the two senses, not their relative accuracy.
- Which of the following best describes a flaw in the author's reasoning?
Answer: It relies on a simplified model as decisive proof, ignoring empirical evidence and real-world conditions that may alter outcomes.
The author argues that raising minimum wage will necessarily increase unemployment by citing an economics textbook stating that higher labor prices reduce labor demand. The author then concludes policymakers should avoid wage increases. This reasoning treats a simplified theoretical model as definitive proof while ignoring empirical evidence and real-world complexity. Economic textbook models make assumptions (perfect competition, no other changes) that rarely hold in practice, where factors like increased consumer spending, productivity effects, and market imperfections can alter outcomes. Choice A correctly identifies this flaw: treating simplified models as decisive proof while ignoring empirical evidence and real-world conditions. Choice B misrepresents the economic reasoning. Choice C incorrectly suggests confusion between unemployment and inflation. Choice D about constitutionality is irrelevant to the economic argument. When evaluating policy arguments, distinguish between theoretical models and empirical evidence.
- Which statement, if true, would most strengthen the researcher's argument?
Answer: A comparable nearby district that did not change start times showed no similar decline in stress-related counseling visits.
The researcher claims that later school start times improve student mental health based on a 15% decline in stress-related counseling visits after moving start times from 7:20 to 8:30 a.m. This argument establishes correlation and temporal sequence but needs additional evidence to support causation. The strongest support would be comparative evidence showing that districts without schedule changes didn't experience similar declines, ruling out alternative explanations like seasonal effects or broader mental health trends. Choice B provides exactly this control group evidence—if a comparable district with unchanged start times showed no similar decline, this would strongly suggest the schedule change caused the improvement. Choice D mentions reduced homework, which could be a confounding factor rather than support. Choice C about student preferences and Choice A about software changes don't strengthen the causal claim. Strong causal arguments require ruling out alternative explanations through controlled comparisons.
- Which statement, if true, would most weaken the memo's conclusion?
Answer: After the ban, households bought significantly more thick plastic trash liners, increasing total plastic by weight compared to before.
The memo argues that banning single-use plastic bags reduces overall plastic pollution, citing a 40% decrease in plastic bags found during beach cleanups after a ban. The memo concludes the ban reduced total plastic waste entering the ocean based on this single measure. However, the argument's validity depends on whether total plastic consumption actually decreased or whether people substituted other plastic products that weren't measured in beach cleanups. Choice D would most weaken the conclusion by showing households bought significantly more thick plastic trash liners after the ban, increasing total plastic by weight—this would demonstrate that the ban merely shifted plastic use rather than reducing it overall. The other choices are irrelevant: volunteer coordination preferences (B) don't affect plastic reduction claims, tourist bag purchases (C) represent minimal impact, and beach habitat diversity (A) doesn't relate to pollution outcomes. When evaluating environmental policy arguments, consider whether measured reductions might be offset by unmeasured increases in substitute products.
- Which of the following best describes a flaw in the author's reasoning?
Answer: It extrapolates from a brief, possibly uncontrolled demonstration to a broad claim about all people and contexts.
The author claims drinking more water improves concentration based on a classroom demonstration where students' attention task scores rose from 7/10 to 8/10 after drinking water. The author concludes increased water intake reliably improves concentration in all settings. This reasoning extrapolates dramatically from a single, brief, uncontrolled demonstration to a universal claim about cognitive enhancement. The demonstration lacks essential controls—no comparison group, no blinding, no accounting for practice effects, expectation effects, or other variables that could explain the small improvement. Choice D correctly identifies this flaw: extrapolating from a brief, possibly uncontrolled demonstration to broad claims about all people and contexts. Choice C incorrectly suggests the author ignores other factors entirely. Choice B mischaracterizes the logical connection. Choice A about objectivity misrepresents the argument. When evaluating cognitive enhancement claims, demand rigorous experimental evidence rather than casual demonstrations.
- "After the flood took the porch, the barn, and half the road, Grandpa called it 'a bit of a wet spring.'" This most strongly suggests Grandpa:
Answer: meets hardship with dry understatement
Describing major losses as 'a bit of a wet spring' is understatement, revealing a wry, unflappable attitude. Taking it literally, as a belief that damage was minor, ignores the obvious gap between his words and the losses.
