SAT Reading & Writing · Command of Evidence (quantitative)
The researchers claim that, in this study, retrieval practice improved later recall relative to rereading. Which choice most effectively…
A team tested whether a short retrieval exercise improved retention of newly learned terms. Students were randomly assigned to reread a list or to answer practice questions. One week later, the researchers measured the percentage of terms correctly recalled.
| Study condition | Mean recall after 1 week |
|---|---|
| Reread | 58% |
| Practice questions | 74% |
The researchers claim that, in this study, retrieval practice improved later recall relative to rereading. Which choice most effectively uses the data to support the claim?
| Study condition | Mean recall after 1 week |
|---|---|
| Reread | 58% |
| Practice questions | 74% |
The researchers claim that, in this study, retrieval practice improved later recall relative to rereading. Which choice most effectively uses the data to support the claim?
Answer and explanation
Answer: A: Students in the practice-question group recalled 16 percentage points more terms than students in the reread group.
The claim is specifically about a comparison between the two study conditions, and A states that comparison directly: a 16-percentage-point gap favoring practice questions. B is true but doesn't address the comparison the claim requires, since both groups exceeding half doesn't show one outperformed the other. C reports only one condition's result in isolation, which can't by itself demonstrate a difference between groups. D is about the number of terms completed, not about how well those terms were later recalled, which is the actual outcome the claim concerns.
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