Clinical application of validity and clinical scales of Minnesota Multiphasic ‎Personality Inventory-Adolescent (MMPI-A): A comparison of profiles for ‎clinical and non-clinical sample and determining a cut point

Document Type : Research Paper


1 Ph.D. in health psychology, assistant ‎professor of family institute, Shahid ‎Beheshti University, Tehran

2 Assistant professor of clinical psychology, Mental Health Research Center Tehran Institute of Psychiatry- School of Behavioral Sciences and Mental Health, Iran University of Medical Sciences, Tehran, Iran


Introduction: This study has been done to comparing the validity and clinical scales of Minnesota multifaceted personality-adolescent (MMPI-A) and life event scale (LES) and determining a cut point of Iranian adolescent.
 Materials and Methods: Within an applied survey design,the final version of MMPI-A was administrated on the 2,018 adolescents (975 boys and 1043 girls) in the five largest provinces (Tehran, Khorasan-e-Razavi, Fars, Isfahan and East-Azarbayjan). The clinical sample including 73 outpatient samples with age range 14-18, whom all had diagnosed in axes I or II bases on DSM-IV-TR criteria, and clinical interview by schedule for affective disorders and schizophrenia for school age children. The MANOVA and receiver operating characteristic curve analysis statistics were applied for data analysis.
 Results: There were significant difference between normal and clinical groups based on validity scales; variable response inconsistency, true response inconsistency, infrequency, infrequency 1, infrequency 2, lie, Kclinical scales; hypochondriasis, depression, hysteria, psychopathic deviate, masculinity/femininity, paranoia, psychoasthenia, schizophrenia, hypomania, social introversion, life event scale (P<0.01). The receiver operating characteristic curve analysis was run to determine optimum cut points to discrimination of clinical and normal subjects.
 Conclusion: According to the findings, discriminate validity of validity and clinical scales of MMPI-A, and LES in both normal and clinical groups was satisfied. The T score equal to 65 had satisfied sensitivity and specify for diagnose in both group. The clinical application of MMPI-A was acceptable in Iranian community and can serve as a tool for clinical evaluation and screening.


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