Practice Test 2
•25 QuestionsRead the passage and answer the question.
A group of researchers proposed that certain migratory birds navigate partly by sensing faint magnetic patterns, an idea that has drifted for decades between plausibility and provocation. The author does not ridicule the theory; instead, she scrutinizes how quickly both supporters and skeptics recruit language that flatters their own certainty. Advocates call the evidence “compelling,” a word that can mean logically forceful or merely emotionally persuasive, and they sometimes treat unanswered questions as if they were inconveniences rather than invitations. Skeptics, meanwhile, dismiss the findings as “anecdotal,” forgetting that many discoveries begin as observations that are not yet neatly quantified.
In a recent experiment, birds were exposed to altered magnetic fields while their orientation was tracked. The results were suggestive: the birds’ headings shifted more often than chance would predict, but not with the tidy uniformity one might expect from a single, dominant mechanism. The author notes that “suggestive” is not the same as “conclusive,” yet neither is it synonymous with “trivial.” She also observes that the most heated arguments arise not from the data but from the verbs used to describe it. Researchers “demonstrate,” “indicate,” “hint,” or “fail,” and each verb smuggles in a judgment about what counts as proof.
The author’s own stance is carefully calibrated. She praises the team’s methodological restraint—controls were included, and limitations were acknowledged—while warning against the temptation to turn a partial explanation into a total one. A compass, she writes, can guide without revealing every feature of the landscape. The theory may be incomplete, but incompleteness is not the same as incompetence; it is often the price of working near the edge of what can be measured.
Which sentence most accurately reflects the author's nuanced view on the magnetic-navigation theory?
Read the passage and answer the question.
A group of researchers proposed that certain migratory birds navigate partly by sensing faint magnetic patterns, an idea that has drifted for decades between plausibility and provocation. The author does not ridicule the theory; instead, she scrutinizes how quickly both supporters and skeptics recruit language that flatters their own certainty. Advocates call the evidence “compelling,” a word that can mean logically forceful or merely emotionally persuasive, and they sometimes treat unanswered questions as if they were inconveniences rather than invitations. Skeptics, meanwhile, dismiss the findings as “anecdotal,” forgetting that many discoveries begin as observations that are not yet neatly quantified.
In a recent experiment, birds were exposed to altered magnetic fields while their orientation was tracked. The results were suggestive: the birds’ headings shifted more often than chance would predict, but not with the tidy uniformity one might expect from a single, dominant mechanism. The author notes that “suggestive” is not the same as “conclusive,” yet neither is it synonymous with “trivial.” She also observes that the most heated arguments arise not from the data but from the verbs used to describe it. Researchers “demonstrate,” “indicate,” “hint,” or “fail,” and each verb smuggles in a judgment about what counts as proof.
The author’s own stance is carefully calibrated. She praises the team’s methodological restraint—controls were included, and limitations were acknowledged—while warning against the temptation to turn a partial explanation into a total one. A compass, she writes, can guide without revealing every feature of the landscape. The theory may be incomplete, but incompleteness is not the same as incompetence; it is often the price of working near the edge of what can be measured.
Which sentence most accurately reflects the author's nuanced view on the magnetic-navigation theory?