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Weiss, Lawrence G.; Gregoire, Jacques; Zhu, Jianjun – Journal of Psychoeducational Assessment, 2016
Many Flynn effect (FE) studies compare scores across different editions of Wechsler's IQ tests. When construct changes are introduced by the test developers in the new edition, however, the presumed generational effects are difficult to untangle from changes due to test content. To remove this confound, we use the same edition of Wechsler…
Descriptors: Generational Differences, Intelligence Tests, Comparative Analysis, Scores
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Powers, Stephen; And Others – Educational and Psychological Measurement, 1986
The predictive validity of the Standard Progressive Matrices (SPM) was examined with a sample of 212 sixth-grade students and 214 seventh-grade students. Correlation coefficients between the SPM and the California Achievement Tests of Reading, Language, and Mathematics ranged from .34 to .60. (Author/LMO)
Descriptors: Abstract Reasoning, Academic Achievement, Cognitive Ability, Cognitive Tests