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McNulty, Richard J.; Floyd, Randy G. – Psychology in the Schools, 2021
This study examined the factor structure of the Detroit Tests of Learning Abilities, Fifth Edition (DTLA-5) using principal axis factoring, multiple factor extraction criteria, and the Schmid-Leiman orthogonalization procedures not utilized by test publishers. Results suggest that the publisher's six-factor structure model was over factored.…
Descriptors: Aptitude Tests, Cognitive Ability, Factor Structure, Factor Analysis