PUTATIVELY PSYCHOSIS-PRONE SUBJECTS 10 YEARS LATER

The predictive validities of several indicators of psychosis proneness were evaluated in a 10-year longitudinal study (N = 508). As hypothes ized. high scorers on the Perceptual Aberration Scale, Magical Ideatio n Scale, or both (n = 182), especially those who initially reported ps ychoticlike experiences of at least moderate deviance, exceeded contro l subjects (n = 153) on psychoses (revised 3rd edition of the Diagnost ic and Statistical Manual of Mental Disorders), psychotic relatives, s chizotypal symptoms, and psychoticlike experiences at follow up. Ss wh o initially scored high on the Magical Ideation Scale and above the me an on the Social Anhedonia Scale were especially deviant, The Physical Anhedonia Scale and the Impulsive Nonconformity Scale were nol effect ive predictors of psychosis proneness.