Critique of a Doppelt-type short form of the WAIS-R.

The purpose of this article is to correct a number of errors in a study by Reynolds, Willson, and Clark (1983). The short form that they proposed, which consists of Information and Arithmetic from the Verbal Scale and Picture Completion and Block Design from the Performance Scale, is shown to be more reliable and more valid than they realized. A corrected table is presented for converting the sums of age-scaled scores on their short form to estimated Full Scale IQs.