Volume 22, Issue 1 (Spring 2016)                   IJPCP 2016, 22(1): 67-76 | Back to browse issues page

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Yousefi R, Piri F. Psychometric Properties of Persian Version of Dirty Dozen Scale. IJPCP. 2016; 22 (1) :67-76
URL: http://ijpcp.iums.ac.ir/article-1-2574-en.html
1- Azarbaijan Shahid Madani University, , E-mail: yousefi@azaruniv.edu
2- Islamic Azad University of Khoy
Abstract:   (6192 Views)

Objectives: Dark triad is a new formulation of maladaptive personality that is composed of Machiavellianism, subclinical narcissism, and subclinical psychopathy. The aim of the current research was to study the psychometric properties of the short form of Dirty Dozen Scale among Iranian population. Method: In this cross sectional study, 300 university students in 2014-15 academic year were selected using stratified sampling method and were assessed by Dark Triad Scale, Narcissistic Personality Inventory-16 (NPI-16), Psychopathy scale of the Minnesota Multiphasic Personality Inventory (MMPI), and Machiavellianism Questionnaire (MACH-IV). Results: Factor analysis by principle component analysis extracted three components: narcissism, machiavellianism and psychopathy. Test-retest correlation coefficients for the total scale and its subscales ranged from 0.66 to 0.80. Internal consistency of the subscales ranged from 0.68 to 0.77. Also, correlation coefficients between total score of Dark Triad Scale and Narcissistic personality, psychopathy, and Machiavellianism were 0.57, 0.42, and 0.55, respectively. Finally, there was a significant difference between males, and females’ scores on Dark Triad components. Conclusion: Short form of Dirty Dozen Scale has suitable psychometric properties for Iranian population.

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Type of Study: Original Research | Subject: Psychiatry and Psychology
Received: 2016/09/18 | Accepted: 2016/09/18 | Published: 2016/09/18

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