Which instrument would you choose when you need only a brief cognitive ability estimate?

• A. ABIQ
• B. WASI
• C. KAIT
• D. SB5

Answer: (B)

When you need a quick, credible read on someone’s cognitive abilities, you want a tool designed for speed that still gives a reliable overall score. The Wechsler Abbreviated Scale of Intelligence fits that need because it uses a small, focused set of subtests that correlate strongly with full-scale IQ, delivering a valid estimate in a short amount of time. This makes it ideal for situations where time is limited or you just need a snapshot rather than a full diagnostic battery. The other options aren’t optimized for a brief estimate: they are more comprehensive batteries or less standardized for rapid screening, so they take longer or require more in-depth administration. So, for a brief cognitive ability estimate, the WASI is the best choice.