Cross-validation of the Persian version of the revised scale of Prolonged Grief Disorder

Document Type : Original Article

Authors

1 Associate Professor, Department of Psychology, Faculty of Education & Psychology, Azarbaijan Shahid Madani University, Tabriz, Iran .

2 M.A in Psychology, Department of Psychology, Faculty of Education & Psychology, Azarbaijan Shahid Madani University, Tabriz, Iran.

Abstract

Introduction: Prolonged grief disorder is a new diagnostic category that included in DSM-5-TR. The present study was conducted with the aim of introducing and psychometric validating of the Persian version of the Prolonged Grief Disorder Scale.

Method: For this purpose, 400 undergraduate students of Azarbaijan Shahid Madani University were selected by purposive sampling and evaluated by the Persian version of the Prolonged Grief disorder Scale, Grief Experience Questionnaire and Inventory of Complicated Grief.

Results: The research sample was divided into two groups to perform exploratory and confirmatory factor analysis. Exploratory factor analysis showed that a general factor can be extracted and explains a total of 52% of the variance of the scores. Confirmatory factor analysis revealed that the extracted single factor has a good fitness. Examining the homogeneity coefficient of the items was obtained by calculating Cronbach's alpha 0.89 and by calculating the Split-half coefficient 0.88. The positive and significant correlation between prolonged grief disorder scores with grief experience and complicated grief was an indicator of the convergent validity of Prolonged Grief disorder Scale. Also, the diagnostic validity of the Prolonged Grief disorder Scale was confirmed by comparing two groups of subjects diagnosed with Prolonged Grief disorder Scale with normal peers and observing a significant difference.

Discussion and Conclusion: The Persian version of the Prolonged Grief disorder Scale has the necessary and sufficient validity for the native sample and can be used as a valid and useful tool for clinical and research purposes.

Keywords

Clinical Psychology and Personality

Articles in Press, Accepted Manuscript
Available Online from 23 April 2024

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