TITLE:
Validation of the Greek Version of Perceived Stress Questionnaire: Psychometric Properties and Factor Structure in a Population-Based Survey
AUTHORS:
Eva Karatza, Dimitra Kourou, Michael Galanakis, Liza Varvogli, Christina Darviri
KEYWORDS:
Perceived Stress Questionnaire, Validation, Psychometric Properties, Population-Based Survey
JOURNAL NAME:
Psychology,
Vol.5 No.10,
August
19,
2014
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.