Wechsler Individual Achievement Test, Second Edition (WIAT-II)
WIAT–II is the only achievement battery empirically linked with the Wechsler Intelligence Scale for Children®—Fourth Edition (WISC–IV®), the Wechsler Preschool and Primary Scale of Intelligence™— Third Edition (WPPSI–III®), and the Wechsler Adult Intelligence Scale®—Third Edition (WAIS®–III), the most widely used intellectual ability tests. These relationships provide valid discrepancy scores to help you make meaningful comparisons between achievement and ability and plan appropriately.
For students (PreK–12): WIAT–II provides guidance for intervention and IEP planning. Clinical interpretation allows for the identification of students who struggle with learning difficulties or who are at-risk for experiencing them. The WIAT–II is also used in determining IDEA requirements. By using the WIAT–II with the WISC®–IV, the discrepancy between a student’s potential and his/her performance can be discerned.
For college students/adults: To better understand the achievement levels of college students/adults, the WIAT–II is used to assess students with learning difficulties. The results allow for the implementation of appropriate, effective accommodations to improve the student’s academic performance.