One Intelligence Test used in healthcare settings is the Wechsler Adult Intelligence Scale (WAIS). This test can be administered by clinical neuropsychologists to assess cognitive functioning in adults after traumatic brain injuries (TBIs), in mental health diagnoses (e.g., schizophrenia, depression), or for dementia evaluations.

WAIS includes verbal comprehension, working memory, perceptual reasoning, and processing speed sections. It gives an overall IQ score but also identifies cognitive strengths and weaknesses. Its strengths include that it provides a comprehensive assessment and can helps with planning rehabilitation or educational interventions. The weaknesses include that it is time-consuming (requiring 60–90 mins), requires specialized training to administer, and may be culturally biased.