Critical Reasoning Weaken Mock Tests

A recent study found that companies with diverse leadership teams tend to outperform those with homogeneous leadership. The study's authors concluded that diversity directly improves corporate performance. Which of the following, if true, would most call into question the authors' conclusion?

The island nation of Veridia has only two species of native land mammals: Species A, which is found exclusively in the northern forests, and Species B, which inhabits the southern grasslands. Over the past thirty years, the population of Species A has declined by 40%, while Species B has remained stable. Environmentalists attribute Species A's decline to logging in the northern forests and recommend an immediate halt to all logging as the remedy. Which of the following, if true, most seriously weakens the environmentalists' explanation for Species A's decline?

The rise of artificial intelligence has reignited philosophical debates about the nature of consciousness. Some AI researchers claim that if a machine can pass the Turing Test — convincingly imitating human conversation — it should be considered intelligent in any meaningful sense of the word. Philosophers such as John Searle have pushed back with the "Chinese Room" argument: imagine a person who does not understand Chinese sitting in a room with a rulebook for manipulating Chinese symbols. To someone outside, the person appears to understand Chinese because the responses are appropriate, but internally, no comprehension occurs. Searle's point is that syntactic manipulation of symbols, no matter how sophisticated, does not produce genuine semantic understanding. Which of the following, if true, would most weaken Searle's Chinese Room argument?

A government agency wants to reduce sugar consumption among children. It proposes a 30% tax on sugary drinks. The agency points to a city that implemented a similar tax five years ago and found that per-capita sugary drink sales in that city dropped by 25% in the first year. The agency predicts a similar percentage decline nationwide. Which of the following, if true, most strongly suggests that the nationwide prediction would be inaccurate?

A recent study shows that companies with diverse executive teams outperform those with homogeneous leadership by 35% in terms of profitability. Based on this finding, a consulting firm recommends that all corporations actively recruit candidates from underrepresented groups for executive positions, claiming this will significantly boost their bottom line. Which of the following, if true, most weakens the consulting firm's recommendation?

A university reports that students who took at least one humanities course in their first year graduated at a higher rate than those who did not. Based on this data, the university recommends making humanities courses required for all first-year students, arguing that this will improve overall graduation rates. Which of the following, if true, most weakens the argument for making humanities courses mandatory?

A new study reveals that people who own pets live an average of three years longer than those who do not. A health insurance company concludes that encouraging employees to adopt pets would reduce healthcare costs and increase overall productivity. Which of the following, if true, most weakens the company's conclusion?

A city councilman argues: "Our city's bike-sharing program has been running for two years. During that time, downtown traffic congestion has decreased by 15%, and air quality has improved by 10%. Clearly, the bike-sharing program has had a significant positive impact on both traffic and air quality in the city." Which of the following, if true, most seriously weakens the councilman's argument?