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Ruminative response scale for eating disorders: bifactor model and measurement invariance in a Portuguese community sample.
- Source :
- Eating Disorders; Jan/Feb2024, Vol. 32 Issue 1, p60-80, 21p
- Publication Year :
- 2024
-
Abstract
- The Ruminative Response Scale for Eating Disorders (RRS-ED) measures ruminative thought content specifically related to eating disordered themes, assessing two domains of rumination, brooding and reflection. This study aims to examine the factor structure of the RRS-ED in a Portuguese community sample, using correlated two-factor models, unifactorial and bifactor models and test for invariance across sex. A sample of 535 adults (179 male; 356 female) filled out the RRS-ED. A subsample (n=347) answered additional measures of repetitive negative thinking and eating psychopathology. The bifactor model of the RRS-ED provided the best fit, demonstrating a reliable general rumination factor. Also, the bifactor model of the RRS-ED was invariant across sex. RRS-ED showed moderate to strong correlations with negative perseverative thinking and eating psychopathology. Both domain-specific factors of RRS-ED were associated with higher levels of eating psychopathology. Findings indicate that RRS-ED is a reliable and valid measure to assess the ruminative response from the general population in Portugal, showing initial evidence that supports the use of a total score of RRS-ED as an overall measure of rumination, while specific factor scores should be reported with caution. Future studies are needed to replicate the findings and further corroborate the unidimensionality of the RRS-ED. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 10640266
- Volume :
- 32
- Issue :
- 1
- Database :
- Complementary Index
- Journal :
- Eating Disorders
- Publication Type :
- Academic Journal
- Accession number :
- 174510707
- Full Text :
- https://doi.org/10.1080/10640266.2023.2259676