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| Achievement Tests | 1 |
| Factor Analysis | 1 |
| Factor Structure | 1 |
| Intermediate Grades | 1 |
| Standardized Tests | 1 |
| Tables (Data) | 1 |
| Test Validity | 1 |
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| Educational and Psychological… | 1 |
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| Dunbar, Stephen B. | 1 |
| Martin, David J. | 1 |
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| Iowa Tests of Basic Skills | 1 |
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Peer reviewedMartin, 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
