Incremental Predictive Validity of the Dualistic Model of Passion for Cannabis Use Among College Undergraduate Students With and Without a Cannabis Use Disorder.

Introduction: We examined whether the Dualistic Model of Passion (DMP; i.e., obsessive passion [OP] and harmonious passion [HP]) for cannabis use was prospectively associated with cannabis use and use-related outcomes, and with academic performance, relationship attachment style, and social connectedness among college students. We also explored whether the DMP was associated with outcomes when included in a model using established constructs (e.g., coping motives, refusal self-efficacy, cannabis use disorder [CUD] symptoms) as predictors of cannabis use and outcomes. Methods: Using a longitudinal cohort design (baseline, 5-month, 10-month [timepoints chosen to better correspond to 9-month academic year]), 513 undergraduate students from two universities who reported using cannabis at least four times in the past month completed a baseline survey (308 meeting criteria for CUD). We used Generalized Estimating Equations to assess longitudinal associations between OP/HP and cannabis use and academic/social outcomes at 5-month and 10-month. Results: At baseline, participants were young adults (Mean age = 20.57, SD = 2.51), 78.8% non-Hispanic, 83.8% White, 55.0% female, and 72.3% heterosexual. Greater HP was not associated with greater past month cannabis use or cannabis-related problems. Greater OP was associated with greater past month cannabis use and more cannabis-related problems. There were no significant passion by time interactions. Greater HP was associated with more anxious attachment. OP was associated with less social connection. Conclusion: This research suggests that the DMP provides novel information about factors associated with cannabis use and use-related consequences, which can aid in our understanding of cannabis use, misuse, and CUD among college students.

A longitudinal examination of alcohol use and emotion dysregulation in adolescence.

Underage drinking is a serious public health concern with magnified physical and psychological risks. Previous research suggests that emotion dysregulation is one factor linked to alcohol use. Limited research has examined emotion dysregulation and alcohol use in adolescent populations, thus the present study aimed to examine the links by assessing the role of emotion dysregulation and its subscales in adolescent alcohol use over time. Participants were 695 high school students, with 309 students having completed Time 2 data collection at a 6-month follow-up. Participants completed measures that assessed Alcohol Use, Emotion Dysregulation, and Emotion Dysregulation subscales. In a negative binomial hurdle model, adolescents with greater emotion regulation difficulties at baseline had significantly greater odds of endorsing any alcohol use at baseline. Greater emotion dysregulation did not significantly predict drinking status or drinking level 6 months later when controlling for baseline alcohol use. Adolescents who reported greater emotional clarity difficulties at baseline were more likely to report any alcohol use at baseline. Among adolescents who drink, reporting greater difficulties accessing emotion regulation strategies was associated with greater alcohol use at baseline and 6 months later. These findings indicate that emotion dysregulation is a cross-sectional marker of alcohol use in adolescents; however, results did not show emotion dysregulation to be a prospective predictor of greater alcohol use. Future research is needed to replicate findings in a more diverse sample of adolescents. (PsycInfo Database Record (c) 2023 APA, all rights reserved).

A randomized pilot trial of a mobile phone-based brief intervention with personalized feedback and interactive text messaging to reduce driving after cannabis use and riding with a cannabis impaired driver.

INTRODUCTION: Driving after cannabis use (DACU) and riding with a cannabis-impaired driver (RWCD) are national public health concerns. Though driving impairments and increased crash risk make DACU and RWCD two of the riskiest cannabis-related behaviors, many continue to drive after use and ride with others who are under the influence and do not view DACU or RWCD as dangerous. The current study examined the efficacy of an accessible, low-cost, mobile phone-based brief intervention aimed at reducing DACU and RWCD among college cannabis users in the context of a randomized three-group pilot trial. METHOD: Participants were 97 college cannabis users (67.4 % women; average age = 21.34; 80.4 % Caucasian) who endorsed DACU at least three times in the past three months. After completing baseline measures, the study randomly assigned participants to one of three conditions: a) a substance impaired-driving personalized feedback plus MI-style interactive text messaging intervention (PF + MIT); b) a substance impaired-driving personalized feedback only intervention (PF); and c) a substance information control condition (IC). All conditions completed outcome measures three months postintervention. RESULTS: Generalized linear mixed models (GLMM) analyses indicated that after controlling for sex, cannabis users in the PF + MIT condition significantly reduced DACU and RWCD over time compared to those in the IC condition. CONCLUSIONS: These findings provide preliminary support for the short-term efficacy of a mobile phone-based intervention in decreasing DACU and RWCD among college cannabis users. Future research should determine whether these reductions in driving behaviors persist past three months.

A mobile phone-based brief intervention with personalized feedback and interactive text messaging is associated with changes in driving after cannabis use cognitions in a proof-of-concept pilot trial.

Driving after cannabis use (DACU) is a significant public health concern and represents one of the riskiest cannabis-related behaviors. Though years of research has demonstrated that cannabis use impairs driving ability, many college students report believing that cannabis use does not impair their driving abilities. This perception of low danger may contribute to a permissive attitude toward DACU. The present proof-of-concept pilot study examined the preliminary efficacy of a mobile phone-based intervention with personalized feedback and text messaging to increase perceptions of dangerousness of DACU. Participants were 77 college cannabis users (65.8% women; average age = 21.2; 88.3% Caucasian) who endorsed DACU at least three times in the past 3 months. After completing baseline measures, participants were randomly assigned to one of three conditions: (a) personalized feedback plus interactive text messaging (PFT), (b) personalized feedback only (PF), or (c) informational control (IC). Participants completed outcome measures 3 months post intervention. Repeated measures mixed models revealed that compared to those in the IC condition, cannabis users in the PFT condition reported significantly greater increases over time in the perception of dangerousness of DACU. These findings provide initial support for the short-term efficacy of a mobile phone-based intervention for changing perceptions related to dangerousness of DACU among college cannabis users. (PsycInfo Database Record (c) 2021 APA, all rights reserved).