Digital SAT Reading and Writing Practice Flashcards

A student is revising a passage about the history of cartography. The current sentence reads: 'Early mapmakers, lacking access to aerial perspectives, relied on traveler accounts and dead reckoning, techniques that introduced systematic error into their representations of coastlines.' The student wants to add a phrase that acknowledges a counterintuitive finding without undermining the sentence's critical tone. Which addition best accomplishes this? A) '—yet produced works of surprising navigational utility—' B) ', which were nonetheless considered artistic masterpieces,' C) ', even though travelers were often unreliable sources,' D) '—a limitation that was largely unrecognized at the time—'

Answer: —yet produced works of surprising navigational utility—

Choice A introduces a genuine counterintuitive finding (these error-prone methods still yielded useful navigational tools) while preserving the critical analytical tone about systematic error. Choice B shifts focus to aesthetics, which is neither counterintuitive nor critical. Choice C amplifies the criticism rather than countering it. Choice D adds detail about recognition but offers no counterintuitive finding—it deepens the negative claim rather than complicating it.

Read the following two statements from different researchers studying urban heat islands: Researcher 1: 'Green roofs reduce ambient rooftop temperatures by an average of 3.6°C, making them the single most cost-effective urban cooling intervention available to city planners.' Researcher 2: 'While green roofs do lower surface temperatures, their effect on ambient air temperature at street level—where human exposure occurs—is negligible without complementary ground-level vegetation networks.' A student claims: 'Both researchers would agree that green roofs have a measurable thermal effect.' Does the textual evidence support this claim?

Answer: Yes, because Researcher 1 quantifies a temperature reduction and Researcher 2 concedes that green roofs 'do lower surface temperatures.'

Choice A correctly identifies the shared concession: Researcher 1 measures a 3.6°C surface effect, and Researcher 2's concessive clause ('While green roofs do lower surface temperatures') grants the same. The student's narrow claim—that a measurable thermal effect exists—is supported by both. Choice B is wrong because Researcher 2 never cites the 3.6°C figure. Choice C misreads Researcher 2, who concedes surface-level effects while contesting street-level impact. Choice D imposes a value judgment ('irrelevant') not present in Researcher 2's text.

Which sentence most precisely uses the word 'tendentious' in a manner consistent with its established meaning?

Answer: The documentary's tendentious framing omitted contradicting data, presenting only evidence that supported its predetermined conclusion.

'Tendentious' means promoting a particular cause or point of view, often at the expense of balanced treatment—it carries a connotation of deliberate bias. Choice A correctly applies this: selective omission to advance a conclusion is the hallmark of tendentious work. Choice B contradicts the word's meaning by describing bias-eliminating methods. Choice C inverts the meaning entirely, attributing balance to tendentious prose. Choice D misuses the word as a vague atmospheric descriptor, which is not how 'tendentious' functions.

A passage describes a 19th-century naturalist who catalogued Amazonian species but whose notebooks were destroyed in a warehouse fire before publication. The final paragraph reads: 'His contributions were not lost so much as they were dispersed—fragments quoted in colleagues' letters, species named in his honor, a single watercolor surviving in a Portuguese archive. Science absorbed him without crediting him.' Which interpretation of the underlined sentence is most strongly supported by the paragraph as a whole?

Answer: The scientific community benefited from his work but failed to formally acknowledge his role in producing it.

The paragraph establishes that the naturalist's work persisted in traceable forms—citations in letters, eponymous species names, surviving artwork—but was never consolidated under his name. 'Absorbed without crediting' captures this: the scientific body of knowledge incorporated his findings while his individual authorship dissolved. Choice B introduces radicalism, which the passage never suggests. Choice C contradicts the paragraph's clear indication that his work did influence colleagues. Choice D is unsupported; the destruction of his notebooks, not a choice, caused his anonymity.

The following sentence contains an error in modifier placement. Identify the version that corrects it without changing the intended meaning: Original: 'Having studied the migration patterns of monarch butterflies for two decades, the data collected by Dr. Reyes revealed a northward shift of nearly 200 kilometers.' A) 'The data collected by Dr. Reyes over two decades of studying monarch butterfly migration patterns revealed a northward shift of nearly 200 kilometers.' B) 'Having studied monarch butterfly migration patterns for two decades, Dr. Reyes found that the data revealed a northward shift of nearly 200 kilometers.' C) 'Dr. Reyes, who studied monarch butterfly migration patterns, collected data over two decades that revealed a 200-kilometer northward shift.' D) 'The data revealed a northward shift of nearly 200 kilometers, which Dr. Reyes collected after two decades of studying monarch butterfly migration.'

Answer: Having studied monarch butterfly migration patterns for two decades, Dr. Reyes found that the data revealed a northward shift of nearly 200 kilometers.

The original sentence has a dangling modifier: 'Having studied…' must logically modify a person, but the subject that follows is 'the data.' Only Choice B places Dr. Reyes immediately after the participial phrase, correctly attaching the modifier to its intended subject. Choice A eliminates the dangling modifier by restructuring but loses the participial construction and subtly changes emphasis. Choice C restructures the sentence in a way that loses the causal link between the two-decade study and the finding. Choice D creates a new dangling modifier: 'which Dr. Reyes collected' ambiguously modifies 'northward shift.'

A student argues that the following graph data supports the claim that 'increased screen time causes higher rates of adolescent anxiety.' The data shows: (1) a correlation coefficient of r = 0.71 between daily screen time and self-reported anxiety scores across 1,200 adolescents, and (2) a statistically significant result (p < 0.01). Which response most precisely identifies the logical gap in the student's argument?

Answer: Correlation, even when strong and statistically significant, cannot by itself establish that screen time is the cause of anxiety rather than a correlated factor or the effect of it.

The core logical gap is conflating correlation with causation. An r = 0.71 with p < 0.01 demonstrates a strong, non-random association—not a directional causal relationship. Anxiety could cause increased screen time (reverse causation), or a third variable (e.g., social isolation) could drive both. Choice B misunderstands statistical power; 1,200 is a reasonable sample. Choice C inverts the meaning of p < 0.01—a low p-value indicates results are unlikely to be due to chance. Choice D overstates the problem with self-report measures; while a limitation, it does not invalidate the dataset entirely.