A joint analysis was made of three versions of the Wechsler Intelligence Scale for Children using an individual differences multidimensional scaling ap proach. The versions of the test considered were the original version, an Australian partial revision, and the current revised version. Common Space Analy sis of the correlation data from the manuals showed a common three-dimensional structure. There was a compact group of verbal subtests and a more loose ly defined group of performance tests. Arithmetic, Digit Span, and Coding were found to be more peripheral to the battery. No systematic variations in structure could be related to the different age groups.
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