1. Performance of the 10-item Center for Epidemiologic Studies Depression scale for caregiving research
- Author
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Elena M Andresen, Katherine Byers, John Friary, Karl Kosloski, and Rhonda Montgomery
- Subjects
Medicine (General) ,R5-920 - Abstract
Objectives: The Center for Epidemiologic Studies Depression (CESD) scale has been useful in a broad spectrum of health research on patient and population outcomes. A brief version is used when depressive symptoms are not the primary focus. Rasch (item response) analysis previously demonstrated potential problems with positively worded items. We tested the 10-item CESD (CESD-10) scale and considered an 8-item version with both psychometric and Rasch analyses. Methods: This was a special sample of 2067 caregivers from three existing US databases. We describe item response patterns and internal constancy in addition to Rasch scale results. Results: There were few problems with missing data, and internal consistency was high (alpha = 0.86–0.88) for both CESD versions. Rasch analysis indicated that one of the positive items (“hopeful about future”) could be dropped. Conclusions: We partly confirmed prior work that suggested dropping positive items for the CESD-10. Among caregivers, item-level problems and scaling problems seem minimal. At present, there is not a strong rationale for dropping the CESD-10 positive items: the one poorly performing positive item might be explained by the special caregiver sample.
- Published
- 2013
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