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A Revisitation Of The Wisc-R Factor Structure With Adequate Sample Size, Systematic Control Of Both Iq And Age Ranges, And The Use Of Procedures To Limit Overfactorization, Rudolph D. Bailey
A Revisitation Of The Wisc-R Factor Structure With Adequate Sample Size, Systematic Control Of Both Iq And Age Ranges, And The Use Of Procedures To Limit Overfactorization, Rudolph D. Bailey
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Problem statement. This study addressed the problem of inconsistency in the results of factor-analytic studies of the WISC-R by performing analyses where age and size of Full Scale IQ ranges were held constant, and by using adequate sample sizes.
Methodology. Factor analyses were performed on the WISC-R scale scores. Principal Axes Factor method with squared multiple Rs in the diagonals was used. Oblimin was the rotation of choice. Sample size varied for each analysis, the largest being 3,493; and the smallest, 225.
Results. At the broad IQ ranges a general factor was found. At narrower IQ ranges, evidence of the …