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Western Michigan University

Theses/Dissertations

Adolescents

2019

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An Examination Of The Relationship Between Adolescent Depression, Anhedonia, And Behavioral Therapy, Alison A. Delizza Aug 2019

An Examination Of The Relationship Between Adolescent Depression, Anhedonia, And Behavioral Therapy, Alison A. Delizza

Dissertations

Adolescent depression is a significant public health problem, however the current characterization of depression as a categorical label is problematic for understanding individual phenomenology, interindividual variability, and best treatment practices (Lewinsohn, Solomon, Seeley, & Zeiss, 2000). Anhedonia has been posited as a process underlying depression that may contribute to poorer outcomes (Gabbay, 2015). The current project examines large samples of adolescents diagnosed with depression to identify common features at a symptom level and the relationship these features have with behavioral therapy outcomes. Four phases of analyses were completed to 1) examine symptomology of multiple depressed adolescent samples in order to identify core features of depression in adolescents; 2) extend a factor analysis to a new sample to determine if the same factors on the Children’s Depression Rating Scale emerge; 3) determine if a prior finding that anhedonia is predictive of poorer outcomes replicates in a new sample from a large scale clinical trial; and 4) explore whether behaviorally oriented treatments appear to specifically target and diminish anhedonia symptoms. Results suggest that anhedonic symptoms ...