Appropriate for ages 4 through adulthood; contains 16 subsets that can be used in the diagnosis of specific learning disabilities and informs decisions about eligibility for services and placement.

• A. WIAT
• B. WJ-ACH
• C. WAIS
• D. KABC

Answer: (A)

This item is about an achievement test that spans a wide age range and provides many subtests to detail academic strengths and weaknesses. The Wechsler Individual Achievement Test is designed for ages 4 through adulthood and includes 16 subtests across areas like reading, writing, mathematics, and oral language. That breadth and number of subtests allow clinicians to form a detailed profile and determine eligibility for services or placement decisions based on how a student’s achievement compares to expectations given their cognitive abilities.

The other assessments listed serve different purposes or age ranges: some focus primarily on intelligence rather than achievement, or are intended for younger or older populations, or emphasize cognitive processing rather than broad achievement profiling. The combination of the wide age range and the specific 16-subtest structure points to the WIAT.