Browsing by Author "Thibodeau, Michel A."

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    The Center for Epidemiologic Studies Depression Scale: A Review with a Theoretical and Empirical Examination of Item Content and Factor Structure
    (Public Library of Science, 2013-03-01) Carleton, R. Nicholas; Thibodeau, Michel A.; Teale-Sapach, Michelle; Welch, Patrick G.; Abrams, Murray P.; Robinson, Thomas; Asmundson, Gordon J.G.
    The Center for Epidemiologic Studies Depression Scale (CES-D; Radloff, 1977) is a commonly used freely available self-report measure of depressive symptoms. Despite its popularity, several recent investigations have called into question the robustness and suitability of the commonly used 4-factor 20-item CES-D model. The goal of the current study was to address these concerns by confirming the factorial validity of the CES-D.
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    Exploring item order in anxiety-related constructs: Practical impacts of serial position
    (2012-04) Carleton, R. Nicholas; Thibodeau, Michel A.; Osborn, Jason A.; Asmundson, Gordon J.G.
    The present study was designed to test for item order effects by measuring four distinct constructs that contribute substantively to anxiety-related psychopathology (i.e., anxiety sensitivity, fear of negative evaluation, injury/illness sensitivity, and intolerance of uncertainty). Participants (n = 999; 71% women) were randomly assigned to complete measures for each construct presented in one of two modalities: (a) items presented cohesively as measures or (b) items presented randomly interspersed with one another. The results suggested that item order had a relatively small impact on item endorsement, response patterns, and reliabilities. The small impact was such that item order appears unlikely to influence clinical decisions related to these measures. These findings not only have implications for these and other similar measures, but further inform a long-standing debate about whether item grouping is a substantial concern in measurement.