Momentary coping and marijuana use in treated adults: Exploring mechanisms of treatment.

Objective: This study was designed to test the hypothesis that an Individualized Assessment and Treatment Program (IATP) for cannabis use disorder (CUD) that utilized experience sampling (ES) data to individualize treatment would be more effective at eliciting adaptive coping responses in high-risk situations than a more conventional cognitive-behavioral treatment. It was further expected that increases in momentary adaptive coping, positive affect, and self-efficacy expectancies would mediate the effects of treatment on momentary drug use in the hours following a temptation-to-use episode.

Method: The participants were 198 adults seeking treatment for CUD, randomized to receive either a conventional motivational enhancement + cognitive-behavioral treatment (MET-CBT) with or without contingency management (CM) or an IATP with or without CM. Treatment took place over nine individual sessions, and follow-ups were conducted out to 14 months post-intake. ES data were recorded in all treatments at pretreatment, and at various points during and after treatment.

Results: Analyses of ES data indicated that the IATP conditions yielded greater increases in use of adaptive coping skills during temptation episodes than did the MET-CBT conditions. Mediation analyses supported the hypothesis that momentary use of coping skills mediates the effects of IATP on use or non-use of marijuana in the hours following a temptation episode.

Conclusions: Use of an individualized coping treatment approach results in lower use of marijuana in high-risk situations, and actual utilization of adaptive coping appears to be a mechanism of that effect. (PsycInfo Database Record (c) 2021 APA, all rights reserved).