Validity of two WPPSI short forms in outpatient clinic settings

Investigated the validity of two- and four-subtest short forms for the WPPSI in an outpatient clinic population of 116 children aged 4 and 5 years. The short forms differed in ability to approximate the Full Scale IQ. Both short forms correlated highly with the Full Scale IQ and accounted for a high percentage of variance. Both short forms misclassified a substantial percentage of Ss in relation to intelligence category. It was concluded that only the four-subtest short form was useful as a screening device in an outpatient mental health setting.