WPPSI™-III and IV Tests What are the WPPSI™-III and IV Tests? The Wechsler Preschool and Primary Scale of Intelligence™ (3rd and 4th edition) or WPPSI-III and IV tests are IQ tests that assess your 2:6 to 7:7-year-old’s intellectual quotient. A psychologist administers the test one-on-one to a child. Both versions of the WPPSI test assess a child’s verbal, non-verbal/performance and processing speed abilities. The WPPSI-IV test also measures a child’s working memory skills. Schools frequently use this test to assess children for gifted and talented programs and for private school admissions. Wechsler Preschool and Primary Scale of Intelligence ™–Fourth Edition (WPPSI™–IV) is a registered trademark of Pearson Education, Inc. and its affiliates (“Pearson”). Pearson does not sponsor or endorse any TestingMom.com products or programs, nor has this TestingMom.com product or program been reviewed, certified, or approved by Pearson. The questions used by TestingMom.com are TestingMom.com’s own materials, created based on publicly available information, and in no way do they correspond to actual WPPSI™–IV testing materials. TestingMom.com uses practice materials only; not actual test questions. Trademarks referring to Pearson are used for nominative purposes only and such trademarks are solely the property of their respective owner.