Date of Award
Bachelor of Arts
Dr. Laura Knouse
There has been limited research investigating potential mechanisms that drive the association between obsessive-compulsive (OC) and depressive symptoms. Obsessive beliefs are implicated in the etiology and maintenance of OC symptoms and have been shown to correlate with depressive symptoms amongst OCD patients. I assessed whether obsessive beliefs moderate the relation between obsessive compulsive and depressive symptoms to replicate analyses from a study conducted by Teller et al. (2017). Forty-six participants with elevated OC symptoms were recruited through Amazon’s Mechanical Turk. Each participant completed the obsessing subscale of the Revised Obsessive-Compulsive Inventory (OCI-R), Dimensional Obsessive Compulsive Scale (DOCS), the Revised Obsessive Beliefs Questionnaire (OBQ-44), and the 7- item depression subscale of the Depression Anxiety and Stress Scale (DASS-21). Obsessive- compulsive symptoms were not a significant predictor of depressive symptoms (B = 1.20, p =
.28). Additionally, obsessive beliefs (B = .00, p = .85), and the interaction between obsessive beliefs and obsessive-compulsive symptoms (B = .01, p = .53), were not significant predictors of depressive symptoms. In exploratory analyses, obsessive-compulsive symptoms were a significant predictor of overall distress (B = 6.91, p ≤ .01). However, obsessive beliefs (B = .00, p = .93), and the interaction between obsessive beliefs and obsessive-compulsive symptoms (B =
.04, p = .41), were not significant predictors of distress. In exploratory post-hoc probing, the influence of OC symptoms on distress was greater when obsessive beliefs were high (+1 SD [t = 2.85, p ≤ .01]) compared to average obsessive beliefs (Mean [t = 2.72, p ≤ .01)]) or when obsessive beliefs were low (-1 SD [t = 1.56, p = .13]). This was particularly true with respect to the relationship between responsibility/threat related OC symptoms and beliefs about the need to control thoughts.
Teller, Joanthan A., "Do Obsessive Beliefs Moderate the Relationship Between Obsessive-Compulsive and Depressive Symptoms?" (2017). Honors Theses. 1004.