Validation of the Greek Version of Perceived Stress Questionnaire: Psychometric Properties and Factor Structure in a Population-Based Survey

Eva Karatza, Dimitra Kourou, Michael Galanakis, Liza Varvogli, Christina Darviri

Department of Psychology, Panteion University of Social and Political Sciences, Athens, Greece.
Postgraduate Course Stress Management and Health Promotion, School of Medicine, University of Athens, Athens, Greece.

DOI: 10.4236/psych.2014.510139                

Abstract

Perceived Stress Scale (PSQ) adaptation is a measuring tool of perceived stress and evaluation of its psychometric properties, on a population-based survey (Greece). Sample N = 1318 of people has anonymously completed the PSQ, comparing it to the Perceived Stress Scale (PSS) and Depressive, Anxiety and Stress Scale (DASS-21). The factor analysis, has shown that the PSQ includes five main factors (Overload, Worries, Joy, Tension/Fatigue, Harassment), which explain the 54.28% of the phenomenon variance. The Cronbach alpha index was 0.9 approaching the respective reliability factor at the original validation (alpha > 0.9). The test-retest reliability was highly statistically significant with an alpha = +0.86, close to the results of the original validation (r = 0.82). The criterion validity has shown high correlation with the PSS (r = 0.737), plus the fact that the results of the correlation with the DSS-21 (r = 0.597) were satisfactory. The satisfactory results, as it concerns the psychometric properties of the PSQ, make the questionnaire an appropriate measuring tool of the perceived stress of the Greek population.

Keywords

Perceived Stress Questionnaire, Validation, Psychometric Properties, Population-Based Survey

Conflicts of Interest

The authors declare no conflicts of interest.

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