Wechsler Adult Intelligence Scale Full Scale IQ of Male Admissions to a High Secure Psychiatric Hospital Over Six Decades

The present study describes the Wechsler Adult Intelligence Scale (WAIS) full scale IQ (FIQ) of admissions to one UK High Secure Psychiatric Care hospital. WAIS IV comparative data and FIQ from 1960s 2010s are presented (n = 639). Results suggest 75% current have FIQs within ‘low average’ ‘extremely low’ classifications, with significant discrepancies between composite scales being common processing speed most compromised area cognitive functioning. A standard deviation decline in since is also present. results discussed terms changing clinical presentations admissions, along research implications.