Document Type : Research Paper

Authors

1 M.A. in General Psychology, Allameh Tabataba’i University, Tehran, Iran

2 Assistant Professor, Department of Clinical and General Psychology, Allameh Tabataba’i University, Tehran, Iran.

Abstract

Narcissism is a condition that impairs interpersonal relationships and experiences, thinking, feelings, and inclinations. Timely and accurate diagnosis of the disorder is crucial for successful psychological interventions. Numerous assessment tools have been developed in accordance with this need, each with its own strengths and shortcomings. The goal of this study was to examine the psychometric characteristics of the Sherman Short-Form Five-Factor Narcissism Scale (FFNI-SF), specifically among the university student population. A sample of 576 students from various academic levels of three universities (Allameh Tabataba’i University of Technology, Tehran University, and Amirkabir University of Technology) completed the FFNI-SF, Pathological Narcissism Inventory (PNI), and Narcissistic Personality Inventory (NPI). The psychometric analysis yielded favorable results, with the internal consistency index of the scale, Cronbach's alpha, registered at a satisfactory value of 0.87. The test-retest reliability of the whole scale, measured at three-week intervals, resulted in a value of 0.88 and the test-retest coefficients of the subscales ranged from 0.55 to 0.81. These outcomes indicate satisfactory internal consistency and stability. Furthermore, the test's validity was demonstrated with the overall correlation value of the scale score with two instruments (PNI and NPI), respectively, of 0.52 and 0.53, indicating adequate convergent validity. Based on the analyses performed using confirmatory factor analysis (CFA), the questionnaire demonstrated adequate construct validity, indicating its suitability for use by experts in assessing narcissistic traits. Overall, the results revealed the validity and reliability of the Iranian version of the scale, justifying its application to evaluate narcissistic personality traits.

Keywords

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