The instrument provides scores on 10 clinical scales: Hypochondriasis (Hs), Depression (D), Hysteria (Hy), Psychopathic deviate (Pd), Masculinity-femininity (Mf), Paranoia (Pa), Psychasthenia (Pt), Schizophrenia (Sc), Hypomania (Ma), and Social introversion (Si).
The diagnostic performance of the MMPI-2 was compared with that of the SCID in order to evaluate both incremental validity and diagnostic accuracy.The Minnesota Multiphasic Personality Inventory, one of the most widely used paper-and-pencil tests of personality, especially in the US, consisting of 566 (originally 504, later 550) statements, including 16 that are repeated, to which the respondent answers True or mostly true ( T), False or not usually true ( F), or Cannot say ( ?), typical items being similar to the following: I feel contented most of the time I have never had a fainting spell, and I believe I am cursed.
The SCID and the MMPI-2 were administered to all patients. A total of 76 first-admission psychiatric patients were assigned DSM-IV consensus diagnoses by two experienced psychiatrists utilizing all available information and then dichotomized into 1 of 2 groups: (1) the nonaffective psychosis group and (2) the other mental illness group. The investigators sought to assess the use of the MMPI-2 as a potential means of improving on the diagnostic efficacy of the SCID. Results of the analysis were published in the journal Psychiatry Research. The study was conducted among first-admission patients at the Psychiatric Centre Hvidovre-a department of the University Hospital of Copenhagen, Denmark. In addition, the use of a combination of the MMPI-2 and the SCID has demonstrated incremental validity compared with the use of the SCID alone. Use of the Minnesota Multiphasic Personality Inventory-2 (MMPI-2) may help identify early psychosis at least as well as the Structured Clinical Interview for the Diagnostic and Statistical Manual of Mental Disorders IV Text Revision (SCID).
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