Assessing invariance of cannabis use motives by veteran status and binary gender identity among college students.

Student service members/veterans (SSM/V) are distinct from non-veteran students in a variety of ways, including in their cannabis use patterns and potentially their motives for cannabis use. Additionally, previous research has shown that men and women endorse different motives for their cannabis use. The present study was designed to assess whether a popular measure of cannabis use motives is invariant across veteran status and gender identity. Based on previous research, we hypothesized that cannabis motives would show invariance across SSM/V men, SSM/V women, non-veteran men, and non-veteran women (n = 1,011, SSM/V = 553) among those who indicated using cannabis at least once in their lifetime. Results from the four-group invariance testing procedure revealed metric invariance. This suggests that while the factor structure and factor loadings are invariant, there are differences at the intercept level for cannabis motives across groups. The same items load onto the same latent constructs and the strength of the items loading onto the latent factors was also the same across groups. The demonstrated invariance has implications for use in SSM/V and non-veteran clients. As this scale is brief, it could easily be used as a screening tool or used to guide intervention content.

Moderated Mediation of the eCHECKUP TO GO College Student Cannabis Use Intervention.

Background: Cannabis use rates are rising among college students, creating a need for effective and accessible intervention options. One such intervention, the Marijuana eCHECKUP TO GO (eCTG) program, has relatively few studies investigating mechanisms of change and related outcomes. This intervention provides users with personalized normative feedback to adjust user's normative perceptions and use patterns. The current study tested moderated mediation of program effects between the eCTG intervention condition and a healthy stress management (HSM) control condition in a college student sample of near-daily cannabis users. Protective behavioral strategies (PBS) were measured among the eCTG conditionMethods: Data were analyzed from a sample of 227 students who were randomly assigned to the eCTG intervention condition or HSM control condition. Change in cannabis use frequency was measured by re-administering the baseline survey at a six-week follow-up. Multi-group moderated mediation path analysis tested the effects of the eCTG intervention on change in cannabis use frequency through PBS, descriptive norms, and injunctive norms, with multi-group categories defined by sex.Results: Direct effects indicated the intervention predicted reduced descriptive norm perceptions and cannabis use frequency. An indirect effect was found for the intervention condition on reducing cannabis use frequency through change in descriptive norms in males. Similarly, an indirect effect was seen for intervention condition on reducing cannabis use frequency through change in injunctive norms for females.Conclusions: Findings suggest changes in descriptive norms played a sex-specific mediating role in the mechanisms of change for the eCTG intervention on reductions in cannabis use frequency.

Sensation seeking and nonsuicidal self-injurious behavior among adolescent psychiatric patients.

The Benefits and Barriers model of NSSI postulates that engagement in NSSI is positively reinforced by potent benefits, however there are a host of barriers to engagement, any one of which is salient enough to prevent engagement. It is possible that individual differences in sensation seeking, a trait that describes optimal level of positive reinforcement, may alter the balance between the benefits and barriers of engagement in NSSI. There are significant associations between engagement in NSSI and sensation seeking in college undergraduates, a population with disproportionately high rates of NSSI. However, it is unclear whether these traits play a similar role in adolescents. We expected that higher levels of sensation seeking would positively relate to any NSSI history, lifetime frequency of NSSI, and earlier age at onset of NSSI among a sample of 200 adolescents in a psychiatric hospital. Consistent with previous research, results indicated that females were more likely to engage in NSSI than males. Additionally, increased sensation seeking was associated with greater likelihood of ever engaging in NSSI and a greater number of different NSSI methods tried. Though we expected sensation seeking would be significantly related to lifetime NSSI frequency and earlier onset of NSSI, it was not. Findings suggest that individual differences may alter relations between the benefits and barriers of NSSI and that measuring sensation seeking in adolescents, especially females, and especially those experiencing psychological distress, may identify those at highest risk for engaging in NSSI and may allow for targeted intervention with these individuals.