Psychometric properties of Light Triad Scale (LTS) in Iranian students

Document Type : Original Article

Authors

1 Ph.D. student of psychology, Lorestan University, Iran.

2 Assistant professor, Faculty of Literature and Humanities, Salman Farsi Kazerun University, Kazerun, Iran.

3 professor, Faculty of Literature and Humanities, Lorestan University, Lorestan, Iran.

Abstract

Introduction: The aim of this study was to investigate the psychometric properties of the Light Triad Scale (LTS) in a sample of undergraduate students.

Method: The statistical population of this descriptive-cross-sectional study included all undergraduate students of the academic year 2021-2022 in Shiraz University and the research sample included 602 students (483 female students and 120 male students) By convenience sampling method who participated in this research by completing an online questionnaire. The research tools include Kaufman et al. Light Triad Scale (2019), the Short Form of Goldberg’s Big Five Personality Scale (Khormaei & Farmani, 2014), Collins & Read Revised Adult Attachment Scale (1996), Gross & John Emotion Regulation Questionnaire (2003), Jones & Paulhus Short Dark Triad (2014), Beckham et al. Cognitive Triad Inventory (1986) and Walach et al. Freiburg Mindfulness Inventory_ Short Form (2006). In this study, the methods of exploratory factor analysis, confirmatory factor analysis, calculation of Cronbach's alpha coefficients, as well as convergent and divergent validity were used.

Results: The results of both methods of factor analysis have confirmed the existence of a three-factor structure in the studied students. Thus, the three factors of Kantianism, humanism and faith in humanity together explained 52.8% of the total variance. The values of alpha coefficients for the whole scale and its three subscales were calculated in the range of 0.71 to 0.81, which was a good proof of internal consistency. The significant correlation coefficients between the total score and the scores obtained from the three sub-scales with other research tools also prove the appropriate convergent and divergent validity of the tool.

Discussion and Conclusion: Based on the results of this research, it can be concluded that the Persian version of Light Triad Scale (LTS) has desirable psychometric properties among Iranian students.

Keywords

Clinical Psychology and Personality

Articles in Press, Accepted Manuscript
Available Online from 28 October 2023

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