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A Reexamination Of The Cognitive Behavioral Model Of Chronic Fatigue Syndrome: Investigating The Cogency Of The Model’S Behavioral Pathway, Madison Sunnquist
College of Science and Health Theses and Dissertations
Cognitive behavioral theories of chronic fatigue syndrome (CFS) assert that cognitions and behaviors perpetuate the fatigue and impairment that individuals with CFS experience (Wessely, Butler, Chalder, & David, 1991). Vercoulen and colleagues (1998) utilized structural equation modeling to empirically develop a cognitive behavioral model of CFS. The resulting model indicated that attributing symptoms to a physical cause, focusing on symptoms, and feeling less control over symptoms were associated with increased fatigue. Additionally, individuals who attributed symptoms to a physical cause reported lower activity levels and more fatigue and impairment. However, in an attempt to replicate this model, Song and Jason (2005) demonstrated that the model displayed inadequate fit statistics for a well-characterized group of individuals with CFS; the model resulted in appropriate fit for individuals with chronic fatigue from psychiatric conditions. Despite uncertainty surrounding the model’s validity, it continues to be cited to support the application of cognitive behavioral and graded exercise therapies to individuals with CFS (White et al., 2011). The current study utilized second-stage conditional process modeling (i.e., moderated mediation) to reexamine the behavioral pathway of the Vercoulen et al. (1998) model. This pathway is characterized by ...