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. 2021 Oct 27;16(10):e0259062.
doi: 10.1371/journal.pone.0259062. eCollection 2021.

Validity and reliability of the Serbian COVID Stress Scales

Marija Milic  1 , Jelena Dotlic  2   3 , Geoffrey S Rachor  4 , Gordon J G Asmundson  4 , Bojan Joksimovic  5 , Jasmina Stevanovic  1 , Dragoslav Lazic  6 , Zorica Stanojevic Ristic  7 , Jelena Subaric Filimonovic  1 , Nikoleta Radenkovic  1 , Milica Cakic  2 , Tatjana Gazibara  8
Affiliations

Validity and reliability of the Serbian COVID Stress Scales

Marija Milic et al. PLoS One. .

Abstract

This study aimed to generate a linguistic equivalent of the COVID Stress Scales (CSS) in the Serbian language and examine its psychometric characteristics. Data were collected from September to December 2020 among the general population of three cities in Republic of Serbia and Republic of Srpska, countries where the Serbian language is spoken. Participants completed a socio-demographic questionnaire, followed by the CSS and Perceived Stress Scale (PSS). The CSS was validated using the standard methodology (i.e., forward and backward translations, pilot testing). The reliability of the Serbian CSS was assessed using Cronbach's alpha and McDonald's omega coefficients and convergent validity was evaluated by correlating the CSS with PSS. Confirmatory factor analysis was performed to examine the construct validity of the Serbian CSS. This study included 961 persons (52.8% males and 47.2% females). The Cronbach's alpha coefficient of the Serbian CSS was 0.964 and McDonald's omega was 0.964. The Serbian CSS with 36 items and a six-factorial structure showed a measurement model with a satisfactory fit for our population (CMIN/DF = 4.391; GFI = 0.991; RMSEA = 0.025). The CSS total and all domain scores significantly positively correlated with PSS total score. The Serbian version of the CSS is a valid and reliable questionnaire that can be used in assessing COVID-19-related distress experienced by Serbian speaking people during the COVID-19 pandemic as well as future epidemics and pandemics.

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Conflict of interest statement

The authors have declared that no competing interests exist.

Figures

Fig 1
Fig 1. Confirmatory factor analysis for COVID Stress Scales.
Fig 2
Fig 2. ROC analysis of COVID Stress Scales according to Perceived Stress Scale.
See this image and copyright information in PMC

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