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Educational and Psychological…1
Dunbar, Stephen B.1
Martin, David J.1
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Martin, David J.; Dunbar, Stephen B. – Educational and Psychological Measurement, 1985
The factorial validity of the Iowa Tests of Basic Skills was investigated. Hierarchical factor analysis was performed with a subset of the standardization data to explore the presence of second-order group factors. Results supported the construct validity of Language and Mathematics subscales. Verbal and Visual Information group factors were…
Descriptors: Achievement Tests, Factor Analysis, Factor Structure, Intermediate Grades