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Rasch analysis of the Perceived Stress Scale: Transformation from an ordinal to a linear measure.
- Source :
-
Journal of Health Psychology . Jul2019, Vol. 24 Issue 8, p1070-1081. 12p. - Publication Year :
- 2019
-
Abstract
- Rasch analysis was conducted to enhance the precision of the widely used 10-item Perceived Stress Scale using two datasets (n = 450 each) randomly selected from samples of the New Zealand general population (n = 1102), New Zealand university students (n = 479) and US university students (n = 396). The best Rasch model fit (χ 2(27) = 29.92, p =.36), good person separation reliability (.80) and coverage (98%) of the sample by the scale items were achieved when locally dependent items were combined into subtests. These findings support reliability and internal structural validity of the 10-item Perceived Stress Scale. The instrument precision can be further improved using the ordinal-to-linear conversion tables published here. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 13591053
- Volume :
- 24
- Issue :
- 8
- Database :
- Academic Search Index
- Journal :
- Journal of Health Psychology
- Publication Type :
- Academic Journal
- Accession number :
- 137017348
- Full Text :
- https://doi.org/10.1177/1359105316689603