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BMC Psychiatry
Published in: BMC Psychiatry 1/2023

Open Access 01-12-2023 | Suicide | Research

Evaluation the validity and reliability of persian short form of the literacy of suicide scale (LOSS): a methodological study in 2022

Authors: Alireza Jafari, Mahbobeh Nejatian, Ali Mohammad Mokhtari, Fatemehzahra Naddafi, Mahdi Moshki

Published in: BMC Psychiatry | Issue 1/2023

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Abstract

Introduction

This research was conducted with the aim of evaluating the validity and reliability of Persian short version of the Literacy of Suicide Scale (LOSS) among the general population.

Methods

This methodological study was conducted to evaluate the validity and reliability of Persian short form of LOSS among the general population, using a sample of 1175 participants in Iran, 2022. Participants were entered to study using method of proportional stratified sampling. The validity of Persian short form of LOSS was checked by four measures of validity: qualitative face validity, qualitative content validity, EFA (exploratory of factor analysis), and CFA (confirmatory factor analysis). The measure of reliability of Persian short form of LOSS was checked by three reliability of McDonald omega coefficient, ICC (Intraclass Correlation Coefficient), and Cronbach’s alpha coefficient.

Results

Based on the findings of EFA, 4 components with eigenvalues > 1 were extracted and these 4 factors were able to explain 57.96% of variance. In EFA section, only 1 question was deleted due to entry into the non -relevant sub –scale. Based on the results of CFA, all items had the factor loading greater than 0.4 and none of the items were removed at this stage. In CFA, based the results of goodness-of-fit indexes for example: χ2/df = 2.077, NFI: 0.957, IFI = 0.977, RMSEA = 0.030, GFI: 0.988, and PGFI = 0.569, the final mode was approved with 11 items and 4 factors. In this study for all items, Cronbach’s alpha coefficient was 0.739, McDonald omega coefficient was 0.753, and ICC was 0.860. Finally, the Persian short form of LOSS was approved with 11 items and four dimensions of signs/ symptoms with 3 questions, the risk factors with 2 questions, treatment/ prevention with 2 questions, and causes/ triggers with 4 questions.

Conclusion

The Persian short form of LOSS with 11 items and four subscales is a valid and reliable scale to survey the suicide literacy status in the general population.
Appendix
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Metadata
Title
Evaluation the validity and reliability of persian short form of the literacy of suicide scale (LOSS): a methodological study in 2022
Authors
Alireza Jafari
Mahbobeh Nejatian
Ali Mohammad Mokhtari
Fatemehzahra Naddafi
Mahdi Moshki
Publication date
01-12-2023
Publisher
BioMed Central
Keywords
Suicide
Suicide
Published in
BMC Psychiatry / Issue 1/2023
Electronic ISSN: 1471-244X
DOI
https://doi.org/10.1186/s12888-023-05281-y

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