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Information and IdeasVery hardFinding weakening a retention claim

Information and Ideas practice question

A university claims that its new mentoring scheme raised first-year student retention, noting that retention rose from 82 percent to 88 percent in the scheme's first year.

Which finding, if true, would most directly weaken the university's claim?

  1. A. In the same year, the university raised its entry requirements and admitted students who were, on average, better prepared.Correct
  2. B. The mentors received two days of training.
  3. C. Students rated the mentors highly in a survey.
  4. D. Retention at a rival university stayed at 82 percent that year.

Answer: A. In the same year, the university raised its entry requirements and admitted students who were, on average, better prepared.

Better-prepared students are more likely to stay regardless of mentoring, so the rise has a rival explanation.

Why the other answers are wrong

B. The mentors received two days of training.
Training details don't bear on the cause of the rise.
C. Students rated the mentors highly in a survey.
High ratings support the scheme, if anything.
D. Retention at a rival university stayed at 82 percent that year.
A flat rival makes the university's rise look MORE like the scheme's doing.

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