Wechsler Preschool and Primary Scale of Intelligence
The Wechsler Preschool and Primary Scale of Intelligence – Fourth Edition (WPPSI-IV) is a frequently used measure of intelligence for children under 7-years-old.
The original WPPSI was adapted from the Wechsler Intelligence Scale for Children (WISC) in 1967 (Hill et al. 1985). There have been three revisions since the original (WPSSI-R 1989; WPPSI-III 2002; WPPSI-IV 2012). These revisions are designed to make the test easier to administer, as well as update items and norms with a current standardization sample. The most recent edition has some structural changes, including the addition of new indices and subtests, while still retaining many of the basic structural components of the Wechsler family of tests.
The standardization sample of 1700 children was collected between December 2010 and May 2012. The sample was based on the 2010 US Census data and specifically stratified for age, sex, race/ethnicity, parental education level, and...
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