Results were quite similar for each of the factor analytic procedures, an indication of a strong underlying structure of the WPPSI tests. Regardless of the factor analytic technique used, two factors appeared--one clearly verbal and the other clearly performance--at each of the three age levels. (Authors)

Administered the Wechsler Intelligence Scale for Children, Wechsler Intelligence Scale for Children-Revised, and Wechsler Preschool Primary Scale of Intelligence in a counterbalanced design to randomly selected elementary school children (N=72). Results indicated that the verbal Intelligence Quotients (IQs) were comparable, but the performance and…

Investigated the validity of subtest short forms for the Wechsler Preschool and Primary Scale of Intelligence in an outpatient population of 116 children. Data showed that the short forms underestimated actual level of intelligence and supported use of a short form only as a brief screening device. (LLL)