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Dimensionality of stress experiences: Factorial structure of the Perceived Stress Questionnaire (PSQ) in a population-based Swedish sample
Umeå University, Faculty of Social Sciences, Department of Psychology.
Umeå University, Faculty of Science and Technology, Umeå Mathematics Education Research Centre (UMERC). Umeå University, Faculty of Medicine, Umeå Centre for Functional Brain Imaging (UFBI).
Umeå University, Faculty of Social Sciences, Department of Psychology.
Umeå University, Faculty of Medicine, Umeå Centre for Functional Brain Imaging (UFBI). Aging Research Center, Karolinska Institutet, Sweden.
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2015 (English)In: Scandinavian Journal of Psychology, ISSN 0036-5564, E-ISSN 1467-9450, Vol. 56, no 5, 592-598 p.Article in journal (Refereed) Published
Abstract [en]

We investigated the factorial structure of the Perceived Stress Questionnaire (PSQ-recent; Levenstein, Prantera, Varvo et al., 1993) in a large (N = 1516; 35-95 years) population-based Swedish sample (Nilsson, Adolfsson, Backman et al., 2004; Nilsson, Backman, Erngrund et al., 1997). Exploratory principal components analysis (PCA) was conducted on a first, randomly drawn subsample (n = 506). Next, the model based on the PCA was tested in a second sample (n = 505). Finally, a third sample (n = 505) was used to cross-validate the model. Five components were extracted in the PCA (eigenvalue > 1) and labeled "Demands," "Worries/Tension," " Lack of joy," " Conflict," and " Fatigue," respectively. Twenty-one out of the 30 original PSQ items were retained in a confirmatory factor analysis (CFA) model that included the five (first-order) factors and, additionally, a general (second-order) stress factor, not considered in prior models. The model showed reasonable goodness of fit [chi(2)(184) = 511.2, p < 0.001; CFI = 0.904; RMSEA = 0.059; and SRMR = 0.063]. Multigroup confirmatory factor analyses supported the validity of the established model. The results are discussed in relation to prior investigations of the factorial structure of the PSQ.

Place, publisher, year, edition, pages
2015. Vol. 56, no 5, 592-598 p.
Keyword [en]
Perceived stress, confirmatory factor analysis, multigroup analysis
National Category
Psychology
Identifiers
URN: urn:nbn:se:umu:diva-112282DOI: 10.1111/sjop.12214ISI: 000364596100016PubMedID: 26096909OAI: oai:DiVA.org:umu-112282DiVA: diva2:877620
Available from: 2015-12-07 Created: 2015-12-04 Last updated: 2015-12-07Bibliographically approved

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Rönnlund, MichaelVestergren, PeterStenling, AndreasNilsson, Lars-GöranBergdahl, Jan
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Department of PsychologyUmeå Mathematics Education Research Centre (UMERC)Umeå Centre for Functional Brain Imaging (UFBI)
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CiteExportLink to record
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