Which test, designed for both adults and children, includes verbal and performance subtests and is widely used in intelligence assessment?

• A. Stanford-Binet Intelligence Scale
• B. Gardner's Multiple Intelligences
• C. Emotional Intelligence
• D. Wechsler Scales

Answer: (D)

The main idea is how this type of intelligence test organizes tasks into verbal and performance (nonverbal) components and is designed for people across a wide age range. The Wechsler scales fit this structure perfectly. There are versions for adults (WAIS) and for children (WISC), and they include subtests that assess verbal abilities—like vocabulary and similarities—and subtests that assess performance abilities—like block design and matrix reasoning. The scores from these subtests are combined into a Full Scale IQ as well as distinct index scores, reflecting both language-based reasoning and nonverbal problem solving. Because this verbal-versus-performance design and broad applicability across ages are central to how the Wechsler scales work, they’re the go-to choice for widely used intelligence assessment. The other options don’t match this exact framework: Gardner’s approach isn’t a standardized IQ test with such a verbal/nonverbal split; emotional intelligence measures a different construct related to social and emotional skills; the Stanford-Binet is another valid IQ test but the description most specifically points to the Wechsler scales.