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McGill, Ryan J. – Canadian Journal of School Psychology, 2015
The current study examined the incremental validity of the clinical clusters from the Woodcock-Johnson III Tests of Cognitive Abilities (WJ-III COG) for predicting scores on the Woodcock-Johnson III Tests of Achievement (WJ-III ACH). All participants were children and adolescents (N = 4,722) drawn from the nationally representative WJ-III…
Descriptors: Validity, Cognitive Tests, Achievement Tests, Predictive Validity