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A psychometric eval...
A psychometric evaluation of the Swedish translation of the Perceived Stress Scale: a Rasch analysis
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- Rozental, Alexander (författare)
- Karolinska Institutet,Uppsala universitet,Luleå tekniska universitet,Hälsa, medicin och rehabilitering,Department of Psychology, Uppsala University, Uppsala, Sweden; Centre for Psychiatry Research, Department of Clinical Neuroscience, Karolinska Institutet, & Stockholm Health Care Services, Region Stockholm, Solna, Sweden,Institutionen för psykologi,Karolinska Inst, Ctr Psychiat Res, Dept Clin Neurosci, Solna, Sweden.;Stockholm Hlth Care Serv, Reg Stockholm, Solna, Sweden.;Luleå Univ Technol, Dept Hlth Educ & Technol, Luleå, Sweden.,Uppsala University, Sweden; Karolinska Institute, Sweden; Region Stockholm, Sweden; Luleå University, Sweden
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- Forsström, David, 1981- (författare)
- Uppsala universitet,Stockholms universitet,Klinisk psykologi,Department of Psychology, Uppsala University, Uppsala, Sweden; Centre for Psychiatry Research, Department of Clinical Neuroscience, Karolinska Institutet, & Stockholm Health Care Services, Region Stockholm, Solna, Sweden; Department of Psychology, Stockholm University, Stockholm, Sweden,Institutionen för psykologi,Karolinska Inst, Ctr Psychiat Res, Dept Clin Neurosci, Solna, Sweden.;Stockholm Hlth Care Serv, Reg Stockholm, Solna, Sweden.;Stockholm Univ, Dept Psychol, Stockholm, Sweden.
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- Johansson, Magnus (författare)
- RISE,Mätteknik,Karolinska Institute, Sweden; Region Stockholm, Sweden
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(creator_code:org_t)
- Springer Nature, 2023
- 2023
- Engelska.
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Ingår i: BMC Psychiatry. - : Springer Nature. - 1471-244X. ; 23
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Abstract
Ämnesord
Stäng
- Background: Stress reflects physical and psychological reactions to imposing demands and is often measured using self-reports. A widely-used instrument is the Perceived Stress Scale (PSS), intended to capture more general aspects of stress. A Swedish translation of the PSS is available but has not previously been examined using modern test theory approaches. The aim of the current study is to apply Rasch analysis to further the understanding of the PSS’ measurement properties, and, in turn, improve its utility in different settings.Methods: Data from 793 university students was used to investigate the dimensionality of different version of the PSS (14, 10, and 4 items) as well as potential response patterns among the participants.Results: The current study demonstrates that the PSS-14 has two separate factors, divided between negatively worded items (perceived stress) and positively worded items (perceived [lack of] control), although with only the negative subscale exhibiting good reliability. Response patterns were analyzed using Differential Item Functioning, which did not find an influence of gender on any of the items, but for age regarding the positive subscale (items 6 and 9). The PSS-10 also demonstrated adequate reliability for the negative subscale, but the PSS-4 was not deemed suitable as a unidimensional scale.Conclusions: Based on the results, none of the versions of the PSS should be used by sum-scoring all of the items. Only the negative items from the PSS-14 or PSS-10 can be used as unidimensional scales to measure general aspects of stress. As for different response patterns, gender may nevertheless be important to consider, as prior research has found differences on several items. Meanwhile, content validity is discussed, questioning the relevance of anger and being upset when measuring more general aspects of stress. Finally, a table to convert the PSS-7 (i.e., negative items) ordinal sum scores to interval level scores is provided.
Ämnesord
- SAMHÄLLSVETENSKAP -- Psykologi (hsv//swe)
- SOCIAL SCIENCES -- Psychology (hsv//eng)
- MEDICIN OCH HÄLSOVETENSKAP -- Hälsovetenskap (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Health Sciences (hsv//eng)
- SAMHÄLLSVETENSKAP -- Psykologi -- Psykologi (hsv//swe)
- SOCIAL SCIENCES -- Psychology -- Psychology (hsv//eng)
Nyckelord
- Modern test theory
- Perceived stress scale
- Psychometric
- Rasch analysis
- Psychology
- Psykologi
- Psychology
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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