How Intelligent are Organicity Scales of the MMPI?
The WAIS Verbal IQs of 16 psychiatric patients (mean age 53.3 yrs) were not related to 3 measures of organicity derived from the MMPI: the Caudality and Organicity scales developed by J. S. Wiggins (1966) and the Psychiatric-Organic scale of C. G. Watson and D. Plemel (see record 1979-25143-001). However, Performance and Full-Scale IQs were significantly related to the Caudality scale. The Caudality scale may represent a measure of nonverbal intelligence that is sensitive to brain changes. (9 ref)
Horton, A. M.,
Golden, C. J.
(1982). How Intelligent are Organicity Scales of the MMPI?. Clinical Neuropsychology, 4(4), 170-171.
Available at: https://nsuworks.nova.edu/cps_facarticles/743