Which instrument is a general intelligence test for children that provides a Full Scale IQ from multiple index scores?

• A. WAIS
• B. WPPSI
• C. WISC
• D. WIAT

Answer: (C)

Tests like the Wechsler scales assess general cognitive ability by combining performance across multiple cognitive domains into a single overall score. For school-age children, the Wechsler Intelligence Scale for Children is the standard general intelligence measure designed to yield a Full Scale IQ that reflects overall cognitive ability. This Full Scale IQ comes from several index scores that capture different areas of functioning, typically Verbal Comprehension, Perceptual Reasoning, Working Memory, and Processing Speed. By integrating these domains, the WISC provides a comprehensive picture of a child’s overall cognitive level and strengths and weaknesses. The other options serve different purposes: the adult version is for adults, the preschool version is for younger children, and the WIAT is an achievement test rather than an intelligence test.