Wais-iv Test

Combined with adaptive functioning scales (e.g., ABAS-3), a FSIQ of approximately 70 or below (two standard deviations below the mean) is a core criterion for ID diagnosis. The WAIS-IV provides the severity specifier (mild, moderate, severe, profound) based on the FSIQ range.

Wechsler Adult Intelligence Scale—Fourth Edition (WAIS-IV) wais-iv test