Volume 13, Issue 4 (July-August 2014)
Payesh 2014, 13(4): 457-465 |
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Saman Maroufizadeh, Armin Zareiyan, Naseh Sigari. Psychometric properties of the 14, 10 and 4-item “Perceived Stress Scale” among asthmatic patients in Iran. Payesh 2014; 13 (4) :457-465
URL: http://payeshjournal.ir/article-1-292-en.html
URL: http://payeshjournal.ir/article-1-292-en.html
1- Department of Epidemiology and Reproductive Health at Reproductive Epidemiology Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
2- Department of Community & Public Health Nursing, Faculty of Nursing, AJA University of Medical Sciences, Tehran, Iran
3- Department of Internal Medicine, School of Medicine, Kurdistan University of Medical Sciences, Sanandaj, Iran
2- Department of Community & Public Health Nursing, Faculty of Nursing, AJA University of Medical Sciences, Tehran, Iran
3- Department of Internal Medicine, School of Medicine, Kurdistan University of Medical Sciences, Sanandaj, Iran
Abstract: (5574 Views)
Objective (s): The “Perceived Stress Scale” (PSS) is one of the most widely used instruments for measuring psychological stress in a range of clinical and nonclinical settings. The aim of the present study was to examine the psychometric properties of the all three versions of the PSS (PSS-14, PSS-10, and PSS-4) among asthmatic patients in Iran.
Methods: A total of 106 asthmatic patients referring to several clinics in Sanandaj were selected by convenience sampling for this study. The PSS-14 and the short-form version of the “Depression Anxiety and Stress Scale” (DASS-21) were administrated to all participants. The psychometric properties of the PSS were examined: construct validity using confirmatory factor analysis (CFA), convergent validity by evaluating the relationship with DASS-21 and internal consistency using Cronbach’s alpha.
Results: The findings of CFA revealed that a two-factor model for all three versions of PSS, containing both negative and positive factors, fit the data significantly better than a one-factor model. The Cronbach’s alpha coefficients for the PSS-14, PSS-10, and PSS-4 were 0.90, 0.90, and 0.77, respectively. All three versions of the PSS were significantly positively correlated with the DASS-21 and its subscales, indicating an acceptable convergent validity. Moreover, women scored higher than men on the PSS.
Conclusion: All three versions of the PSS demonstrated adequate psychometric properties for measuring psychological stress among asthmatic patients.
Methods: A total of 106 asthmatic patients referring to several clinics in Sanandaj were selected by convenience sampling for this study. The PSS-14 and the short-form version of the “Depression Anxiety and Stress Scale” (DASS-21) were administrated to all participants. The psychometric properties of the PSS were examined: construct validity using confirmatory factor analysis (CFA), convergent validity by evaluating the relationship with DASS-21 and internal consistency using Cronbach’s alpha.
Results: The findings of CFA revealed that a two-factor model for all three versions of PSS, containing both negative and positive factors, fit the data significantly better than a one-factor model. The Cronbach’s alpha coefficients for the PSS-14, PSS-10, and PSS-4 were 0.90, 0.90, and 0.77, respectively. All three versions of the PSS were significantly positively correlated with the DASS-21 and its subscales, indicating an acceptable convergent validity. Moreover, women scored higher than men on the PSS.
Conclusion: All three versions of the PSS demonstrated adequate psychometric properties for measuring psychological stress among asthmatic patients.
type of study: Descriptive |
Accepted: 2013/09/23 | ePublished ahead of print: 2014/04/29 | Published: 2014/07/15
Accepted: 2013/09/23 | ePublished ahead of print: 2014/04/29 | Published: 2014/07/15
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