What age range is the WAIS used for?

What age range is the WAIS used for?

• A. 16-90 years
• B. 16-90 years and 11 months
• C. 10-80 years
• D. 18-99 years

Answer: (B)

WAIS is designed for older adolescents and adults within a precise age window: 16 through 90 years and 11 months. This exact range matters because the test norms and interpretation are tied to who was included in the standardization sample. The standard range ensures scores are meaningful and comparable to peers tested within the same bounds. The correct range matches 16 years to 90 years and 11 months, reflecting the official WAIS-IV standardization. Other options either cut off the upper limit too early, omit the required month, or include ages outside the intended population, so they don’t align with how the WAIS is standardized and interpreted.

WAIS is designed for older adolescents and adults within a precise age window: 16 through 90 years and 11 months. This exact range matters because the test norms and interpretation are tied to who was included in the standardization sample. The standard range ensures scores are meaningful and comparable to peers tested within the same bounds. The correct range matches 16 years to 90 years and 11 months, reflecting the official WAIS-IV standardization. Other options either cut off the upper limit too early, omit the required month, or include ages outside the intended population, so they don’t align with how the WAIS is standardized and interpreted.