Jamie Parnes

Bio

Dr. Jamie Parnes conducts research focused on psychosocial determinants of cannabis and other substance use, with an emphasis on sexual and gender minoritized (SGM) individuals (e.g., LGBTQ+). His programmatic research focuses on 1) individual differences and mechanisms underlying the initiation and escalation of cannabis use, 2) cannabis/substance use, minority stress, and mental health among SGM individuals, 3) cannabis harm reduction and treatment, and 4) policy influences on cannabis use. His research employs a range of methodologies including self-report, laboratory, intensive longitudinal (e.g., ecological momentary assessment), and advanced quantitative methods (e.g., structural equation, multilevel, latent growth modeling). Dr. Parnes aims to advance understanding of psychosocial risk and protective factors for cannabis use initiation and dependence, reduce problematic cannabis use, and inform tailored interventions for SGM substance use. In addition to his research, Dr. Parnes's clinical interests include providing evidence-based psychodiagnostic assessment, substance use and co-occurring mental health treatment, and working with adolescents and young adults.

Select Publications

Google Scholar profile: https://scholar.google.com/citations?user=gkXVBhsAAAAJ

Parnes, J. E., Prince, M. A., & Conner, B. T. (2025). Development and validation of the Positive Outcomes of Cannabis Use Scale (POCUS) among predominantly white adults in the United States. Assessment, 32(1), 14-31. https://doi.org/10.1177/10731911241240618

McNamara, I. A., Parnes, J. E., Stetsiv, K., Nance, M., Sauer, J., Greenwood, K., & Carpenter, R. W. (2025). Missouri college students’ intentions towards initiating or changing cannabis use in a shifting legal landscape. Cannabis. https://doi.org/10.26828/cannabis/2025/000286

Parnes, J. E., Kiekens, W. J., Mereish, E. H., Sawyer, K., & Miranda, R. Jr. (2024). LGBT-THC: A systematic review of psychosocial mechanisms linking minority stressors and cannabis use among sexual and gender minoritized individuals. Current Addiction Reports, 11, 1055-1071. https://doi.org/10.1007/s40429-024-00603-w

Kiekens, W. J., Parnes, J. E., Treloar Padovano, H., Miranda, R. Jr., & Mereish, E. H. (2024). Momentary minority stress, nicotine use, and craving: Moderation by nicotine-use motives among sexual minority youth. Journal of Clinical Child and Adolescent Psychology.https://doi.org/10.1080/15374416.2024.2395267

Parnes, J. E., Berey, B. L., Pielech, M., Meisel, S. N., Treloar Padovano, H., & Miranda, R. Jr. (2023). Does sleep relate to next-day cannabis use? Findings from an adolescent and young adult motivational enhancement and cognitive behavioral therapy plus topiramate intervention. Drug and Alcohol Dependence, 253, 111006. https://doi.org/10.1016/j.drugalcdep.2023.111006