Introduction & Projects
Stephanie Lanza's career is devoted to advancing prevention research in behavioral health through the development and application of innovative quantitative methods. She works primarily in two methodological areas. Much of her work seeks to advance finite mixture models, particularly latent class analysis. Her primary collaborators in this work include Bethany Bray, John Dziak and Ashley Linden-Carmichael.
She also is working to advance and apply new statistical models in order to reveal dynamic processes. Much of this work, done in collaboration with Ashley Linden-Carmichael, addresses new research questions about age- and time-varying effects related to health behavior.
Stephanie also collects contemporary data on young adult substance use using intensive measurement via wearable devices. This work is designed to inform within-person risk factors for substance misuse and its consequences.
Lanza, S. T., Sokolovsky, A. W., Linden-Carmichael, A. N., White, H. R., & Jackson, K.M. (2022). Understanding heterogeneity among simultaneous alcohol and marijuana users: Latent classes derived from daily diary data. Journal of Studies on Alcohol and Drugs (83)3, 358-363. https://www.jsad.com/doi/full/10.15288/jsad.2022.83.358
Lanza, S. T., Whetzel, C. A., Linden-Carmichael, A. N., & Newschaffer, C. J. (2022). Change in college student health and well-being profiles as a function of the COVID-19 pandemic. PLoS ONE 17(5). https://doi.org/10.1371/journal.pone.0267724
Qian, T., Walton, A. E., Collins, L. M., Klasnja, P., Lanza, S. T., Nahum-Shani, I., Rabbi, M., Russell, M. A., Walton, M. A., Yoo, H., & Murphy, S. A. (2022). The microrandomized trial for developing digital interventions: Experimental design and data analysis considerations. Psychological Methods. Advance online publication. https://doi.org/10.1037/met0000283
Stull, S. W., Linden-Carmichael, A. N., Cloutier, R. M., Bonny, A. E., & Lanza, S. T. (2022). Flexibly modeling age trends in the prevalence of co-occurring patterns of substance use and mental health disorders using time-varying effects and latent class analysis. The American Journal of Drug and Alcohol Abuse, 1–9. Advance online publication. https://doi.org/10.1080/00952990.2021.2016786
Cloutier, R.M., Calhoun, B.H., Lanza, S.T., Linden-Carmichael, A.N. (2022). Assessing subjective cannabis effects in daily life with contemporary young adult language. Drug and Alcohol Dependence. Advance online publication. https://doi.org/10.1016/j.drugalcdep.2021.109205
Gopalan, M., Linden-Carmichael, A., & Lanza, S. (2021). College students' sense of belonging and mental health amidst the COVID-19 pandemic. Journal of Adolescent Health. Advance online publication. https://doi.org/10.1016/j.jadohealth.2021.10.010
Linden-Carmichael, A. N., Hochgraf, A. K., Cloutier, R. M., Stull, S. W., & Lanza, S. T. (2021). Associations between simultaneous alcohol and cannabis use and next-day negative affect among young adults: The role of sex and trait anxiety. Addictive Behaviors, 123. https://doi.org/10.1016/j.addbeh.2021.107082
Lanza, S.T., & Linden-Carmichael, A.N. (2021). Time-varying effect modeling for the behavioral, social and health sciences. Springer International Publishing. https://doi.org/10.1007/978-3-030-70944-0
Hochgraf, A. K., Fosco, G. M., Lanza, S. T., & McHale, S. (2021). Developmental timing of parent-youth intimacy as a protective factor for adolescent adjustment problems. Journal of Family Psychology. Advance online publication. https://doi.org/10.1037/fam0000864
Jones, D.R., Allen, H.K., Lanza, S.T., Engeland, J.E. (2021). Daily associations between affect and alcohol use among adults: The importance of affective arousal. Addictive Behaviors(112). https://doi.org/10.1016/j.addbeh.2020.106623
Developmental timing of parent-youth intimacy as a protective factor for adolescent adjustment problems
Hochgraf, A.K., Lanza, S.T., Fosco, G.M., & McHale, S.M. (In Press). Developmental Timing of Parent-Youth Intimacy as a Protective Factor for Adolescent Adjustment Problems. Journal of Family Psychology
Mak, H. W., Fosco, G.M., & Lanza, S. T. (2021). Dynamic Associations of Parent-Adolescent Closeness and Friend Support with Adolescent Depressive Symptoms Across Ages 12-19. Journal of Research on Adolescence, 31, 299-316.
Linden-Carmichael, A. N., Allen, H. K., & Lanza, S. T. (2021). The socio-environmental context of simultaneous alcohol and marijuana use among young adults: Examining day-level associations. Drug and Alcohol Review, 40(4), 647-657. https://doi.org/10.1111/dar.13213
Linden-Carmichael, A. N., Allen, H. K., & Lanza, S. T. (2020). The language of subjective alcohol effects: Do young adults vary in their feelings of intoxication? Experimental and Clinical Psychopharmacology. 29(6), 670–678. Advance online publication. https://doi.org/10.1037/pha0000416
Linden-Carmichael, A. N., Van Doren, N., Masters, L. D., & Lanza, S. T. (2020). Simultaneous alcohol and marijuana use in daily life: Implications for level of use, subjective intoxication, and positive and negative consequences. Psychology of Addictive Behaviors, 34(3), 447- 453. https://doi.org/10.1037/adb0000556
Conroy, D. E., Yang, C.-H., Lanza, S. T., Smyth, J. M., & Lagoa, C. M. (2020). Temporal dynamics of treatment receipt in a text message intervention for physical activity: Single-group, within-person trial. JMIR mHealth and uHealth, 22, 8(4), e14270. https://doi.org/10.2196/14270
Dziak, J. J., Coffman, D. L., Lanza, S. T., Li, R., & Jermiin, L. S. (2020). Sensitivity and specificity of information criteria. Briefings in Bioinformatics, 21, 553-565. https://doi.org/10.1093/bib/bbz016
Mak, H. W., Russell, M. A., Lanza, S. T., Feinberg, M. E., & Fosco, G. M. (2019). Age-varying associations of parental knowledge and antisocial peer behavior with adolescent substance use. Developmental Psychology. Advance online publication. doi:10.1037/dev0000866 PMCID: PMC7195894
Linden-Carmichael, A. N., Masters, L. D., & Lanza, S. T. (2020). “Buzzwords”: Crowdsourcing and quantifying U.S. young adult terminology for subjective effects of alcohol and marijuana use. Experimental and Clinical Psychopharmacology, 28(6), 632-637. Advance online publication. https://doi.org/10.1037/pha0000344
Russell, M. A., Linden-Carmichael, A. N., Lanza, S. T., Fair, E. V., Sher, K. & Piasecki, T. M. (2020). Affect relative to day-level drinking initiation: Analyzing ecological momentary assessment data with multilevel spline modeling. Psychology of Addictive Behaviors, 34(3), 434-446. https://doi.org/10.1037/adb0000550
Bray, B. C., Dziak, J. J., & Lanza, S. T. (2019). Age trends in alcohol use behavior patterns among U.S. adults ages 18-65. Drug and Alcohol Dependence, 205, 107689. doi: 10.1016/j.drugalcdep.2019.107689 PMCID: PMC6957076
Linden-Carmichael, A. N., Kloska, D. D., Evans-Polce, R., Lanza, S. T., & Patrick, M. E. (2019). College degree attainment by age of first marijuana use and parental education. Substance Abuse, 40, 66-70. doi: 10.1080/08897077.2018.1521354 PMCID: PMC6535370
Rice, C. E., Fish, J. N., Russell, S. T., & Lanza, S. T. (2019). Sexual minority-related discrimination across the life course: Findings from a national sample of adults in the United States. Journal of Homosexuality, 68 (2), 252-268. Advance online publication. doi: 10.1080/00918369.2019.1648083 PMCID: PMC7073284
Inverse propensity score weighting with a latent class exposure: estimating the causal effect of reported reasons for alcohol use on adulthood problem alcohol use 16 years later
Bray, B. C., Dziak, J. J., Patrick, M. E., & Lanza, S. T. (2019). Inverse propensity score weighting with a latent class exposure: estimating the causal effect of reported reasons for alcohol use on adulthood problem alcohol use 16 years later. Prevention Science, 20, 394-406. https://doi.org/10.1007/s11121-018-0883-8 PMCID: In process
Newman, M. G., Shin, K. E., & Lanza, S. T. (2019). Time-varying moderation of treatment outcomes by illness duration and comorbid depression in generalized anxiety disorder. Journal of Consulting and Clinical Psychology, 87(3), 282-293. PMCID: PMC6632089
Linden-Carmichael, A. N., Russell, M. A., & Lanza, S. T. (2019). Flexibly modeling alcohol use disorder risk: How many drinks should we count? Psychology of Addictive Behaviors, 33, 50-57. doi: 10.1037/adb0000431 PMCID: PMC6521945
Linden-Carmichael, A. N., Dziak, J. J., & Lanza, S. T. (2019). Dynamic features of problematic drinking: Alcohol use disorder latent classes across ages 18-64. Alcohol and Alcoholism, 54, 97-103. doi: 10.1093/alcalc/agy074 PMCID: PMC6324653
Is young adulthood a critical period for suicidal behavior among sexual minorities? Results from a US national sample
Fish, J. N., Rice, C. E., Lanza, S. T., & Russell, S. T. (2018). Is young adulthood a critical period for suicidal behavior among sexual minorities? Results from a US national sample. Prevention Science. doi: 10.1007/s11121-018-0878-5. PMCID:PMC6163093
The age-varying association of student status with excessive alcohol use: Ages 18 to 30 years
Evans-Polce, R. J., Maggs, J. L., Staff, J., & Lanza, S. T. (2017). The age-varying association of student status with excessive alcohol use: Ages 18 to 30 years. Alcoholism: Clinical and Experimental Research, 41(2), 407–413. PMCID: PMC5272785
Age-related changes in associations between reasons for alcohol use and high-intensity drinking across young adulthood
Patrick, M. E., Evans-Polce, R., Kloska, D. D., Maggs, J. L., & Lanza, S. T. (2017). Age-related changes in associations between reasons for alcohol use and high-intensity drinking across young adulthood. Journal of Studies on Alcohol and Drugs, 78(4), 558–570. PMCID: PMC5551660
July 26, 2022
Penn State funds a five-year study of the health and well-being of its students
Findings to inform ‘efficient, tailored supports’ for students UNIVERSITY PARK, Pa. – The coronavirus pandemic has negatively affected the mental health of college students nationwide, according to recent studies. To better serve its own students, Penn State recently funded a five-year study to gain further insight into its students’ mental health status and needs.Read more.
February 21, 2022
An ounce of prevention: Research center aims to stop problems before they startRead more.
February 16, 2022
College students' sense of belonging related to mental health during pandemicRead more.
August 02, 2021
Closeness with dads may play a special role in how kids weather adolescence
Adolescence can be an emotionally turbulent time, but new research at Penn State found that close, supportive relationships with parents — especially dads — at key points during adolescence can help stave off certain adjustment problems.Read more.
June 11, 2021
Training scientists in substance use prevention the focus of $3.2 million grant
A $3.2 million grant from the National Institute on Drug Abuse (NIDA) will fund the continuation of Penn State's Prevention and Methodology Training (PAMT) program, which focuses on training the next generation of scientists in preventing substance use and addiction.Read more.
May 06, 2021
Food and housing security task force shares progress updates for trustees
As many college students across the country are increasingly facing food and housing insecurity, Penn State is developing new solutions, enhancing current resources and building a network of support to help tackle this rising challenge across the University’s campuses.Read more.
November 23, 2020
Video: Penn State prevention researchers respond to COVID-19Read more.
September 30, 2020
Video: Impact of COVID-19 on Penn State Undergraduate Students
Watch the video here.Read more.
August 19, 2020
Words used to describe alcohol intoxication may give clues to drinking habits
UNIVERSITY PARK, Pa. — People have always used different words to describe the inebriating effects of alcohol, from “blotto” in the 1920s to “honkers” in the 1950s. Now, new Penn State research suggests the language young adults use to describe the effects they feel from drinking may give insight into their drinking habits.Read more.
May 19, 2020
Video: “The History and Science of Prevention,” featuring PRC Director Stephanie Lanza
Watch “The History and Science of Prevention” video here.Read more.
February 04, 2019
Sexual minorities face significant health disparities
UNIVERSITY PARK, Pa. — Sexual minorities — people who are attracted to members of the same sex or who identify as gay, lesbian or bisexual — are at a higher risk for several different health problems at different points in their lives, according to Penn State researchers.Read more.
November 26, 2018
The five types of problem drinking are more common at different ages
UNIVERSITY PARK, Pa. — Alcohol abuse is more complicated than simply drinking too much. There may be five separate types of problem drinkers, according to Penn State researchers, and each one may be more common at different stages of life.Read more.
October 03, 2018
Penn State launches new consortium to combat the opioid crisis
UNIVERSITY PARK, Pa. — Pennsylvania is one of the states most impacted by the growing opioid epidemic, with one of the highest overdose death rates in the country — but a new initiative bringing together experts from across Penn State aims to combat this crisis through data-driven, evidence-based innovation.Read more.