Examination of Rumination's Mediating Role in the Relation Between Distal Personality Predictors, Cannabis Coping Motives, and Negative Cannabis-Related Consequences.

Objective: Perseverative cognitive processes, such as rumination, may indirectly influence effects of personality traits on cannabis use and related problems. Understanding relations among personality, rumination, and cannabis use motives may lead to better understanding of problematic cannabis use. The present study examined personality traits' influence on negative cannabis-related consequences via rumination and cannabis use coping motives. Methods: We tested a sequential path model across two independent samples such that the model was tested in one sample and replicated in the second sample. Participants were U.S. undergraduate students from multiple universities who reported using cannabis at least once in the prior thirty days. Results: Results partially supported hypotheses such negative urgency and distress tolerance were indirectly related to negative cannabis-related consequences via rumination and coping motives. Specifically, higher negative urgency and lower distress tolerance were related to higher rumination. Higher rumination was related to higher coping motives; which in turn was related to more negative cannabis-related consequences. Results indicate that rumination is a risk factor belying associations between personality and cannabis use to cope and negative consequences of use. Conclusions: Implementing techniques that attenuate rumination for individuals high in negative urgency or low in distress tolerance may reduce or prevent problematic cannabis and unintended outcomes.