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[Comparison of WISC-R and Raven's Progressive Matrices tests in a clinical consultation population]
1Abteilung für Kinder- und Jugendpsychiatrie, Psychiatrischen Klinik, Universität Erlangen-Nürnberg.
Objectives:
What are the differences between measuring intelligence with the WISC-R or with the Progressive Matrices Tests?
Methods:
702 children were tested as outpatients of the Child and Adolescent Department of the Psychiatric University Hospital Erlangen-Nuremberg by means of the WISC-R and the Progressive Matrices Tests (CPM and SPM).
Results:
Highly significant differences in the mean were found. The mean IQ was 10 points higher on the CPM than on the WISC-R but 6 points lower than the WISC-R on the SPM. At 0.67 the correlations between WISC-R and the Matrices Tests were each in the middle high range. Differences between the tests were substantial and remain unchanged despite the recently newly normed SPM.