Factor Structure of the Center for Epidemiologic Studies - Depression Scale: A Study of Women Across the Life Span

2.50
Hdl Handle:
http://hdl.handle.net/10755/155602
Type:
Presentation
Title:
Factor Structure of the Center for Epidemiologic Studies - Depression Scale: A Study of Women Across the Life Span
Abstract:
Factor Structure of the Center for Epidemiologic Studies - Depression Scale: A Study of Women Across the Life Span
Conference Sponsor:Sigma Theta Tau International
Conference Year:2004
Conference Date:July 22-24, 2004
Author:Rayens, Mary Kay, PhD
P.I. Institution Name:University of Kentucky
Title:Associate Professor
Co-Authors:Lynne A. Hall, RN, DrPH; Ann R. Peden, ARNP-CS, DSN; Ellen J. Hahn, RN, DNS; Deborah Reed, PhD, MSPH, RN
Background: Previous research on the Center for Epidemiologic Studies – Depression scale (CES-D), has demonstrated between one and seven underlying factors. It has been suggested that discrepancy in factor structure across studies may be due to sociodemographic differences among samples, particularly in gender, age and ethnicity. Objective: To evaluate the dimensionality of the CES-D in four samples of women at various life stages using exploratory and confirmatory factor analyses with one-, two-, three-, four-factor solutions commonly identified in prior research. Methods: The samples consisted of 246 female university students, 430 low-income single mothers with young children, 503 adult female current and former smokers, and 651 older women living on farms. Each participant completed all 20 items of the CES-D. In addition to exploratory and confirmatory factor analysis, internal consistency was assessed with Cronbach’s alpha. Findings: Scale reliabilities for the entire 20 items ranged from .86 to .92 across the four samples. However, the single-factor solution was not supported by confirmatory factor analysis [CFA] and nonloading items varied across samples. The three-factor solution (depressed/somatic, positive and interpersonal) emerged as optimal across all four samples. CFA factor loadings showed few items are reliable indicators (loadings > .65) of the underlying factor(s). Most reliable items were consistent across all samples, but the remaining 10 items have been found not to load on any factors in at least one analysis, either in the literature or in the present study. Conclusions/Implications: The inability to find a single factor structure across samples may be due as much to the heterogeneity of items as to demographic differences. The strong internal consistency contrasted with the finding that the scale has multiple dimensions may be a function of differences across items in the ability to reliably measure depressive symptoms. Further work is needed to determine if these findings are replicable.
Repository Posting Date:
26-Oct-2011
Date of Publication:
22-Jul-2004
Sponsors:
Sigma Theta Tau International

Full metadata record

DC FieldValue Language
dc.typePresentationen_GB
dc.titleFactor Structure of the Center for Epidemiologic Studies - Depression Scale: A Study of Women Across the Life Spanen_GB
dc.identifier.urihttp://hdl.handle.net/10755/155602-
dc.description.abstract<table><tr><td colspan="2" class="item-title">Factor Structure of the Center for Epidemiologic Studies - Depression Scale: A Study of Women Across the Life Span</td></tr><tr class="item-sponsor"><td class="label">Conference Sponsor:</td><td class="value">Sigma Theta Tau International</td></tr><tr class="item-year"><td class="label">Conference Year:</td><td class="value">2004</td></tr><tr class="item-conference-date"><td class="label">Conference Date:</td><td class="value">July 22-24, 2004</td></tr><tr class="item-author"><td class="label">Author:</td><td class="value">Rayens, Mary Kay, PhD</td></tr><tr class="item-institute"><td class="label">P.I. Institution Name:</td><td class="value">University of Kentucky</td></tr><tr class="item-author-title"><td class="label">Title:</td><td class="value">Associate Professor</td></tr><tr class="item-email"><td class="label">Email:</td><td class="value">mkrayens@uky.edu</td></tr><tr class="item-co-authors"><td class="label">Co-Authors:</td><td class="value">Lynne A. Hall, RN, DrPH; Ann R. Peden, ARNP-CS, DSN; Ellen J. Hahn, RN, DNS; Deborah Reed, PhD, MSPH, RN</td></tr><tr><td colspan="2" class="item-abstract">Background: Previous research on the Center for Epidemiologic Studies &ndash; Depression scale (CES-D), has demonstrated between one and seven underlying factors. It has been suggested that discrepancy in factor structure across studies may be due to sociodemographic differences among samples, particularly in gender, age and ethnicity. Objective: To evaluate the dimensionality of the CES-D in four samples of women at various life stages using exploratory and confirmatory factor analyses with one-, two-, three-, four-factor solutions commonly identified in prior research. Methods: The samples consisted of 246 female university students, 430 low-income single mothers with young children, 503 adult female current and former smokers, and 651 older women living on farms. Each participant completed all 20 items of the CES-D. In addition to exploratory and confirmatory factor analysis, internal consistency was assessed with Cronbach&rsquo;s alpha. Findings: Scale reliabilities for the entire 20 items ranged from .86 to .92 across the four samples. However, the single-factor solution was not supported by confirmatory factor analysis [CFA] and nonloading items varied across samples. The three-factor solution (depressed/somatic, positive and interpersonal) emerged as optimal across all four samples. CFA factor loadings showed few items are reliable indicators (loadings &gt; .65) of the underlying factor(s). Most reliable items were consistent across all samples, but the remaining 10 items have been found not to load on any factors in at least one analysis, either in the literature or in the present study. Conclusions/Implications: The inability to find a single factor structure across samples may be due as much to the heterogeneity of items as to demographic differences. The strong internal consistency contrasted with the finding that the scale has multiple dimensions may be a function of differences across items in the ability to reliably measure depressive symptoms. Further work is needed to determine if these findings are replicable.</td></tr></table>en_GB
dc.date.available2011-10-26T13:59:44Z-
dc.date.issued2004-07-22en_GB
dc.date.accessioned2011-10-26T13:59:44Z-
dc.description.sponsorshipSigma Theta Tau Internationalen_GB
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