Encyclopedia Entry

Cognitive Abilities Test

David F. Lohman

The Cognitive Abilities Test (CogAT), published by Riverside Publishing ( ), is a group-administered test appraising developed reasoning abilities. Its 11 test levels span Kindergarten through Grade 12. CogAT is the contemporary successor to the Lorge-Thorndike Intelligence Tests. In the spring of 2000, the sixth edition of the test was conormed with the Iowa Tests of Basic Skills (Grades K–8) and the Iowa Tests of Educational Development (Grades 9–12). The standardization sample consisted of more than 180,000 students in public, Catholic, and private non-Catholic schools. When administered with either of the Iowa tests, CogAT discrepancies between observed and predicted achievement scores may be obtained for each examinee . CogAT measures abstract reasoning abilities in the three major symbol ...

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