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2013b.00197 Parkin, Jason R. Beaujean, A. Alexander The effects of Wechsler intelligence scale for children-fourth edition cognitive abilities on math achievement. J. Sch. Psychol. 50, No. 1, 113-128 (2012). 2012 Elsevier EN C30 intelligence structural equation models achievement tests measures individuals short term memory cognitive ability intelligence tests mathematics achievement comparative analysis evaluation methods

doi:10.1016/j.jsp.2011.08.003

Summary: This study used structural equation modeling to examine the effect of Stratum III (i.e., general intelligence) and Stratum II (i.e., comprehension-knowledge, fluid reasoning, short-term memory, processing speed, and visual processing) factors of the Cattell-Horn-Carroll (CHC) cognitive abilities, as operationalized by the Wechsler intelligence scale for children, fourth edition (WISC-IV) subtests, on quantitative knowledge, as operationalized by the Wechsler individual achievement test, second edition (WIAT-II) subtests. Participants came from the WISC-IV/WIAT-II linking sample $(n=550)$. We compared models that predicted quantitative knowledge using only Stratum III factors, only Stratum II factors, and both Stratum III and Stratum II factors. Results indicated that the model with only the Stratum III factor predicting quantitative knowledge best fit the data.