A factor analysis of learning impairment and intellectual deterioration in the elderly.
D000368:Aged; D000375:Aging; D005120:Extraversion, Psychological; D005163:Factor Analysis, Statistical; D005260:Female; D006801:Humans; D007361:Intelligence Tests; D007859:Learning Disabilities / Q000175:diagnosis*; D008297:Male; D009497:Neurotic Disorders; D010551:Personality