Assessing cognitive decline from dementia, traumatic brain injuries (TBI), or stroke.

The WAIS‑IV is not merely an IQ test; it is a clinical tool designed to:

This is the traditional compound score. It incorporates performance across all four indices (VCI, PRI, WMI, PSI). It represents global cognitive function.

Clinicians use the test to map cognitive deficits resulting from traumatic brain injuries (TBI), strokes, or neurodegenerative diseases like Alzheimer's.