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The Raven Advanced Progressive Matrices Test (APM) is a well-known measure of higher order general mental ability. The time to administer the test, 40 to 60 minutes, is sometimes regarded as a drawback. To meet efficiency needs, the APM can be administered as a 30-or 40-minute timed test, or one of two developed short versions could be used. In this study, the 20-minute timed version of the APM is compared to the untimed APM as a measure of intellectual ability in 1st-year psychology students. This 20-minute timed version proves to be an adequate predictor of the untimed APM score.

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