Validation and cultural adaptation of the Persian version of the suicidal ideation attributes scale (SIDAS).

Background: The prevalence of Suicidal ideation is increasing in the world. A suitable tool is needed to identify suicide thoughts in the early stage. This study aimed to translation and cultural adaptation of Suicidal Ideation Attributes Scale (SIDAS) among Iranian general people.

Methods: This study was conducted on 1297 participants (EFA = 364 samples, CFA = 933 samples) in 2024. The psychometric properties of SIDAS including of face validity, content validity, construct validity (confirmatory factor analysis and exploratory factor analysis), Cronbach's alpha coefficient, intraclass correlation coefficient (ICC), and McDonald's omega coefficient were evaluated.

Results: The scores of S-CVI/ Ave and CVR of SIDAS were 1 and 1, respectively. One factor with eigenvalues more than 1 was extracted in EFA section and explained 70.95% variance of SIDAS. In EFA, results showed that the rate of Kaiser Meyer Olkin measure of sampling adequacy was 0.817. In CFA, the one factor was evaluated and confirmed based on the goodness-of-fit indices (for example: CFI = 0.995, RMSEA = 0.061, NFI = 0.994, GFI = 0.992). In reliability section, the McDonald's omega coefficient, Cronbach's alpha coefficient, and ICC of SIDAS were 0.931, 0.779, and 0.880, respectively.

Conclusions: The Persian version of SIDAS was confirmed with One factor and 5 items and this brief scale is appropriate for measure the presence and severity of suicidal thoughts in the general population.