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Direct linkMcNulty, 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
Irby, Sarah M.; Floyd, Randy G. – Psychology in the Schools, 2017
This study examined the exchangeability of total scores (i.e., intelligent quotients [IQs]) from three brief intelligence tests. Tests were administered to 36 children with intellectual giftedness, scored live by one set of primary examiners and later scored by a secondary examiner. For each student, six IQs were calculated, and all 216 values…
Descriptors: Intelligence Tests, Gifted, Error of Measurement, Scores
