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. 2022 Aug 12;16(1):40.
doi: 10.1186/s13033-022-00550-x.

Psychometric properties of Persian version of depression literacy (D-Lit) questionnaire among general population

Hadi Tehrani  1   2 , Mahbobeh Nejatian  3 , Mahdi Moshki  4 , Alireza Jafari  5
Affiliations

Psychometric properties of Persian version of depression literacy (D-Lit) questionnaire among general population

Hadi Tehrani et al. Int J Ment Health Syst. .

Abstract

Background: The prevalence of depression in society is increasing and there is a need for a suitable tool to assess the health literacy of people in this field. This study was conducted to evaluate the psychometric of the Iranian version of the depression literacy (D-Lit) questionnaire.

Methods: This cross-sectional study was conducted on 845 participants with a proportional stratified sampling method. First, the translation and cultural adaptation of questionnaire was performed. Then, the validity of D-Lit was assessed by face validity, content validity, exploratory factor analysis (EFA), and confirmatory factor analysis (CFA). The reliability of D-Lit was assessed by the Cronbach's alpha coefficient and McDonald omega coefficient.

Results: Based on the results of EFA, 5 factors emerged with eigenvalues of greater than 1, which accounted for 56.30% of the variance. Based on the results of CFA, one question was deleted and the results of goodness fit indexes confirmed the model. Cronbach's alpha coefficient and McDonald omega coefficient for D-Lit questionnaire were 0.890 and 0.891, respectively. Finally, D-Lit questionnaire with 21 questions and 5 subscales of Knowledge of the psychological symptoms (5 items), Knowledge about the effectiveness of available treatment methods (4 items), Knowledge about cognitive-behavioral symptoms (6 items), Knowledge about taking medications and their side effects (4 items), and Knowledge of the severity of the disease (2 items) were confirmed.

Conclusion: The results of this psychometric evaluation confirmed the Persian version of D-Lit questionnaire with 21 questions and 5 subscales is an appropriate tool for measuring people's literacy about depression.

Keywords: Depression literacy (D-Lit); Mental Health; Mental health literacy; Reliability; Validity.

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Conflict of interest statement

The authors declare that they have no competing interests.

Figures

Fig. 1
Fig. 1
Scree plot of the factor analysis of the Persian version of D-Lit questionnaire
Fig. 2
Fig. 2
Standardized parameter estimates for the factor structure of the D-Lit questionnaire (All factor loadings are significant at p < 0.001, F1: Knowledge of the psychological symptoms, F2: Knowledge about the effectiveness of available treatment methods, F3: Knowledge about cognitive-behavioral symptoms, F4: Knowledge about taking medications and their side effects, F5: Knowledge of the severity of the disease)
See this image and copyright information in PMC

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