A ten-year longitudinal study of intense ambivalence as a predictor of risk for psychopathology.
The predictive validity of the Intense Ambivalence Scale was examined in a 10-year longitudinal study of 362 psychometrically identified psychosis-prone and control participants. Elevated scores on the Intense Ambivalence Scale predicted psychotic-like and depressive symptoms, and the development of psychotic illnesses at the 10-year follow-up assessment (after the removal of variance for membership in the psychosis-prone and control groups). Elevated scores on the scale were also associated with substance abuse, schizotypal symptoms, and impaired functioning at both the initial and follow-up assessments. The Intense Ambivalence Scale did not differentially enhance the predictive power of the Perceptual Aberration or the Magical Ideation Scales.
Kwapil
T R
TR
Department of Psychology, University of North Carolina at Greensboro, 27402-6164, USA.
Raulin
M L
ML
Midthun
J C
JC
D003866:Depressive Disorder / Q000175:diagnosis / Q000523:psychology; D005500:Follow-Up Studies; D006801:Humans; D008137:Longitudinal Studies; D010555:Personality Inventory / Q000706:statistics & numerical data; D011237:Predictive Value of Tests; D011569:Psychiatric Status Rating Scales / Q000706:statistics & numerical data*; D011594:Psychometrics; D011618:Psychotic Disorders / Q000175:diagnosis* / Q000453:epidemiology / Q000523:psychology*; D012044:Regression Analysis; D015203:Reproducibility of Results; D012307:Risk Factors; D012559:Schizophrenia / Q000175:diagnosis / Q000453:epidemiology; D012565:Schizophrenic Psychology; D012737:Sex Factors; D011795:Surveys and Questionnaires