A younger aged reference group for the WISC-R.
The present study obtained WISC-R scores for a younger aged sample. Standard scores for this sample are presented along with an adequate three factor solution reflecting verbal, general performance, and auditory-attention-perceptual-performance dimensions. Furthermore, coefficients of concordance are reported for the present sample with a three factor solution for the normative WISC-R 6 1/2 year old group. Problems with the skewness of some of the subsets are discussed in light of a possible psychometrically guided approach to constructing early infant intellectual assessment measures. Implications of finding a different, from traditional, third factor are considered with respect to early school functioning.
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