The Wechsler Preschool and Primary Scale of Intelligence (WPPSI) is an intelligence test designed for children ages 2 years 6 months to 7 years 7 months developed by David Wechsler in 1967. It is a descendant of the earlier Wechsler Adult Intelligence Scale and the Wechsler Intelligence Scale for Children tests.

What is the WPPSI? The WPPSI (Wechsler Preschool and Primary Scale of Intelligence) uses subtests to determine a child’s Verbal and Performance IQ scores as well as the processing speed for children ages 2.5 years old to 7.25 years old.

WPPSI-IV Wechsler Preschool and Primary Scale of Intelligence Fourth Edition is a Wechsler test of cognitive development for preschoolers and young children.

The Wechsler Preschool and Primary Scale of Intelligence (WPPSI) is a standardized assessment aimed to measure the cognitive development for children ages 2 years and 6 months to 7 years and 7 months.

Processing Speed Index (PSI) – assesses a student’s ability to quickly and correctly complete scanning and sequencing questions as well as discriminate amongst simple visual information as presented.

The WPPSI (Wechsler Preschool and Primary Scale of Intelligence) Test is a reliable cognitive assessment tool for children aged 2 years 6 months to 7 years 7 months, evaluating intellectual abilities and helping identify developmental delays or giftedness.

Read on to learn more about the notable WPPSI–IV features which include new processing speed tasks, the addition of working memory subtests, an expanded test structure— and so much more.

The WPPSI-III is an individually administered IQ test for children aged two years six months to seven years three months (Wechsler, 2002). The test is divided into two age bands, the younger band covering the ages of 2:6–3:11 and the older band covering from 4:0 to 7:3.

What are the recommendations for using the WPPSI–IV over the WISC–IV when evaluating children aged 6:0–7:7? Because the age ranges of the WPPSI–IV and the WISC–IV overlap for children aged 6:0–7:7, practitioners have the option of choosing the appropriate measure for a child between these ages.

This chapter provides an overview of the WPPSI-IV, WISC-V, and WIAT-III. It also provides a clinical case example to illustrate how results from intelligence and achievement measures can be integrated to provide richer clinical information than either type of test provides alone.