Encyclopedia Entry

Differential Aptitude Test

Jennifer Bragger

The Differential Aptitude Test (DAT), first published in 1947 by The Psychological Corporation, is a battery of tests whose goal is to assess multiple separate aptitudes of students and adults. The latest (fifth) version of the DAT, published in 1990, assesses verbal and numerical reasoning, mechanical reasoning, perceptual ability, spatial relations, abstract reasoning, spelling, and language usage. Separate scoring norms are available for individual tests in the battery. The DAT is available in two levels: Level 1 of the DAT was designed for students in Grades 7 to 9 and adults who have completed these grades, and Level 2 was designed for students in Grades 10 ...

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