Validation of the Minnesota Multiphasic Personality Inventory (MMPI 2) in Psychiatric Patients and Non-Patient Individuals in Mashhad City, Iran

Sep 17, 2026

Uploaded by Ophelia

The study validates the second edition of the Minnesota Multidimensional Personality Inventory (MMPI-2) for use with both psychiatric patients and non-patient adults in Mashhad, Iran. Data from 210 healthy adults and 160 psychiatric patients aged 19–50 were analyzed using descriptive statistics, Pearson correlations, percentile norms, Student’s t tests, and Cronbach’s alpha. Results support validity across most scales, with acceptable reliability, leading to an appropriate tool for counseling and clinical assessment.

LanguageEnglish

CategoryResearch & Report

FormatPDF

Pages9

Reading Time23 min

AccessFree to download

Abstract

Introduction

Materials and Methods

Results

Conclusion

Keywords

Introduction

Importance of psychological assessment

Purpose and research questions

Original Article Validation of the Minnesota Multiphasic Personality Inventory (MMPI 2) in psychiatric patients and non-patient individuals in Mashhad city, Iran *Zohre Valianpour1 ; Morteza Modarres Gharavi2 ; Behrouz Mahram3 1MS. in Psychology, Branch of Torbat-e-Jam, Islamic Azad University, Torbat-e-Jam, Iran 2Associate Professor of Clinical Psychology, Psychiatry and Behavioral Sciences Research Center, Mashhad University of Medical Sciences, Mashhad, Iran. 3Associate Professor, Department of Educational Curriculum Studies, Faculty of Psychology and Educational Sciences, Ferdowsi University of Mashhad, Mashhad, Iran. | Abstract
Introduction: The second edition of the Minnesota Multidimensional Personality Inventory (MMPI 2) is the most widely used objective test for personality assessment and psychological pathology. The main purpose of this study was to validate and prepare for the MMPI-2 test.
Materials and Methods: In this study, 210 healthy adults in Mashhad and 160 psychiatric patients aged 19 to 50 years with a medical record in Ibn-e-Sina Psychiatric Hospital in Mashhad were selected from 2007 to 2010. Data were analyzed using descriptive indices, Pearson correlation coefficient, percentile norms, Student T and Cronbach's alpha.
Results: Pearson correlation coefficient was reported in all scales except Hysteria (Hy) scale in retest between 0.73 and 0.93. The results show the validity of all scales based on differentiation based on discriminant validity except L scale (lie detector) at the level of 0.01. Also, the validity in each of the scales, except for the Hy (hysteria) scale, is moderate to high. Cronbach's alpha internal consistency coefficient in non-sick and sick individuals showed good reliability for all scales except the scales of lie (L), hysteria (Hy), masculinity (Mfm), and femininity (Mf f) .
Conclusion: The Minnesota Multidimensional Personality Inventory (MMPI 2) has an acceptable validity for use in the Iranian adult community. The researchers and specialists can use this inventory in counseling centers in addition to history and clinical interviews to assess the psychiatric patients.
Keywords: Mental disorders, Minnesota Multiphasic Personality Inventory (MMPI-2),Validation | | | --- | --- | | Please cite this paper as:
Valianpour Z, Modarres Gharavi M, Mahram B. Validation of the Minnesota Multiphasic Personality Inventory (MMPI 2) in psychiatric patients and non-patient individuals in Mashhad city, Iran. Journal of Fundamentals of Mental Health 2020 Nov-Dec; 22(6):399-407. | | | Introduction
Psychological assessment is still one of the main
tasks of clinical psychologists. Personality
assessment tools with high reliability and validity | are helpful for clinical psychologists. Therefore,
the long history of using personality measurement
tools cannot justify the current use (1) . Minnesota
Multiphasic Personality Inventory-2 (MMPI-2) is | *Corresponding Author: Branch of Torbat-e-Jam, Islamic Azad University, Torbat-e-Jam, Iran. [zvalianpour@yahoo.com](zvalianpour@yahoo.com) [Received: Jan. 11](Received: Jan. 11), 2020 Accepted: Aug. 11, 2020 the highest usage personality test in the psychology profession. Although this tool was initially created in the United States during the middle of the last century, its application has spread throughout the world (2) . "Minnesota Multiphasic Personality Inventory 2" has been translated into 125 different languages so far. MMPI/MMPI-2 is one of the personality assessment tools emphasized in the teaching of doctoral programs in psychology (Ph.D. and Psy.D.) (3) . There are psychological tools that have aprincipal place in psychological therapy (4) . Numerous studies have pointed to the widespread use of this tool. For example, this questionnaire was used by Kashani et al. (5) on the prevalence of personality disorders among emergency nurses. Rezaei Doogheh (6) used it in addicted people. Malek Rais

FAQs

What was the main purpose of this study?

To validate and prepare the MMPI-2 test for use in psychiatric patients and non-patient individuals in Mashhad, Iran.

How were participants selected and what was the sample size?

The study included 210 healthy adults and 160 psychiatric patients aged 19 to 50, selected from 2007 to 2010 at Ibn-e-Sina Psychiatric Hospital in Mashhad.

What did the validity and reliability analyses show?

Validity was supported across most MMPI-2 scales through discriminant-related differentiation, while Cronbach’s alpha indicated good internal consistency for most scales, with exceptions such as lie, hysteria, masculinity, and femininity scales.

Sep 17, 2026

Uploaded by Ophelia