OBJECTIVE: To examine the factor structure of the Center for Epidemiologic Studies Depression Scale (CES-D) in a sample of patients with rheumatoid arthritis (RA), testing all of the alternative models suggested by the previous evidence. METHODS: The CES-D was administered to a group of RA patients (n = 685) during a structured telephone interview. The telephone interview was repeated 6 months later (n = 537) and 12 months later (n = 453). Confirmatory factor analyses were conducted to test alternative models. RESULTS: The correlated 4-factor model and the second-order 4-factor model were the best fitting models. CONCLUSION: The factor structure of the CES-D previously found in the general population was replicated in an RA sample. The results are consistent with previous evidence of criterion contamination in the CES-D when used in an RA sample and provide support for the view that a single summary score may not be the most informative index of the CES-D.
OBJECTIVE: To examine the factor structure of the Center for Epidemiologic Studies Depression Scale (CES-D) in a sample of patients with rheumatoid arthritis (RA), testing all of the alternative models suggested by the previous evidence. METHODS: The CES-D was administered to a group of RApatients (n = 685) during a structured telephone interview. The telephone interview was repeated 6 months later (n = 537) and 12 months later (n = 453). Confirmatory factor analyses were conducted to test alternative models. RESULTS: The correlated 4-factor model and the second-order 4-factor model were the best fitting models. CONCLUSION: The factor structure of the CES-D previously found in the general population was replicated in an RA sample. The results are consistent with previous evidence of criterion contamination in the CES-D when used in an RA sample and provide support for the view that a single summary score may not be the most informative index of the CES-D.
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