Michael P Marshal, PhD

Associate Professor of Psychiatry and Pediatrics

Contact Details

3811 O'Hara St.

Education & Training

Arizona State University, College of Liberal Arts and Sciences Clinical Psychology
University of Pittsburgh School of MedicineClinical Psychology

Specialty Certifications

Licensed by the Pennsylvania State Board of Psychology

Research Interests

Sexual and gender minority youth development; Substance use and mental health disparities; Adolescent minority stress experiences
Selected Research Publications & Products
  1. Marshal, M. P., Goldbach, J. T., McCauley, H. L, Shultz, M. L., Dietz, L. J., Montano, G. T., & DAugelli, A. R. (2014). Gay-related stress and suicide risk: Articulating three mediated pathways that increase risk for suicidality among sexual minority youth. In D. A. Lamis & N. J. Kaslow (Eds.), Advancing the science of suicidal behavior: Understanding and intervention. Hauppauge, NY: Nova Science Publishers.
  2. Marshal, M. P., Dermody, S. S., Cheong, J. W., Burton, C. M., Friedman, M. S., Aranda, F., & Hughes, T. L. (2013). Trajectories of depressive symptoms and suicidality among heterosexual and sexual minority youth. Journal of Youth and Adolescence, 42, 1243-1256. PMID: 23784511.
  3. Marshal, M. P., Dietz, L. J., Friedman, M. S., Stall, R., Smith, H. A., McGinley, J., Thoma, B. C., Murray, P. J., DAugelli, A., & Brent, D. A. (2011). Suicidality and Depression Disparities between Sexual Minority and Heterosexual Youth: A Meta-Analytic Review. Journal of Adolescent Health, 49, 115-123. PMID:21783042.
  4. Marshal, M. P., Friedman, M. S., Stall, R., & Thompson, A. L. (2009). Individual trajectories of substance use in lesbian, gay, and bisexual youth and heterosexual youth. Addiction, 104, 974-981. PMID:19344440.
  5. Marshal, M. P., Friedman, M. S., Stall, R., King, K. M., Miles, J., Gold, M. A., Bukstein, O. G., & Morse, J. Q. (2008). Sexual orientation and adolescent substance use: A meta-analysis and methodological review. Addiction, 103, 546-556. PMID:18339100.

Clinical Interests

Adolescent depression and suicide prevention; Clinical tools to reduce minority substance use; Transgender & nonbinary adolescent mental health
Selected Clinical Publications & Products
  1. Dermody, S. S., Marshal, M. P., Burton, C. M., & Chisolm, D. J. (2016). Risk of heavy drinking among sexual minority adolescents: indirect pathways through sexual orientation-related victimization and affiliation with substance-using peers. Addiction, 111(9), 1599-1606.
  2. Dermody, S. S., Marshal, M. P., Cheong, J., Burton, C., Hughes, T., Aranda, F., & Friedman, M. S. (2014). Longitudinal disparities of hazardous drinking between sexual minority and heterosexual individuals from adolescence to young adulthood. Journal of youth and adolescence, 43(1), 30-39. PMID:23325141.
  3. Burton, C. M., Marshal, M. P., & Chisolm, D. J. (2014). School absenteeism and mental health among sexual minority youth and heterosexual youth. Journal of School Psychology, 52(1), 3747. PMID: 2449549
  4. Dietz, L. J., Marshal, M. P., Burton, C. M., Bridge, J. A., Birmaher, B., Kolko, D., Duffy, J. N., & Brent, D. A. (2014). Social problem solving among depressed adolescents is enhanced by structured psychotherapies. Journal of Consulting and Clinical Psychology, 82(2), 202.
  5. Friedman, M.S., Marshal, M.P., Guadamuz, T. E., Wei, C., Wong, C., Saewyc, E. M., & Stall, R. (2011). A Meta-Analysis to Examine Disparities in Childhood Physical and Sexual Abuse among Sexual and Non-Sexual Minorities. American Journal of Public Health, 101, 1481-1494. PMID:21680921.

Education Interests

Sexual and gender minority disparities research; Longitudinal and quantitative methods; Intersection of minority stress and development
Selected Education Publications & Products
  1. Friedman, M. S., Chiu, J. C., Croft, C., Guadamuz, T. E., Stall, R., Marshal, M. P. (2016). Ethics of Online Consent: Comparing Strategies to Ensure Informed Assent among Youth. Journal of Empirical Research on Human Research Ethics, 11(1), 15-20.