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Accuracy of the MMPI in Identifying Multiple Personality Disorder

A number of previous studies have delineated Minnesota Multiphasic Personality Inventory (MMPI) characteristics in patients with multiple personality. To test the accuracy of the MMPI in identifying such patients, the authors blindly rated 63 MMPIs as being either multiple personality or not. The over-all hit rate for the entire sample was 71 4%, with a 68% hit rate for correctly identified patients with multiple personality These hit rates compare favorably with the hit rates in similar studies of other psychiatric disorders and further demonstrate the clinical usefulness of the MMPI in the diagnosis of multiple personality.