Analysis of the McCarthy Scales in Terms of Guilford's Structure of Intellect Model

Abstract

The new McCarthy Scales of Children's Abilities were analyzed in terms of Guilford's structure of intellect model to evaluate the consonance of this model with the structure of McCarthy's scales. The motor tests were analyzed in terms of Guilford's psychomotor matrix. These analyses showed a great deal of consonance between Guilford's systems and McCarthy's scales. A comparison of the abilities assessed by the McCarthy scales, Stanford-Binet, WPPSI, and WISC indicated that the McCarthy and Stanford-Binet measure similar percentages of the various structure of intellect operations, contents, and products but that both batteries assess the operation of evaluation to a lesser degree than the Wechsler scales.