Bethany Bray, Ph.D. | The Methodology Center

Bethany Bray, Ph.D.

Bethany BrayOutreach Director, The Methodology Center

Research Assistant Professor, College of Health and Human Development


The Methodology Center

The Pennsylvania State University

400 Calder Square II

State College, PA 16801






Ph.D., Penn State, 2007 (Human Development and Family Studies)

M.A.S., Penn State, 2006 (Applied Statistics)

M.S., Penn State, 2005 (Human Development and Family Studies)

B.S., University of Michigan-Dearborn, 2000 (Mathematics and Applied Statistics)

Research Interests & Collaborations

My research focuses on developing and applying advanced statistical methods to questions about the longitudinal development of substance use, with a special emphasis on the relation between substance use and the development of comorbid problem behaviors like gambling and risky sexual behavior. Toward that end, I work on longitudinal, latent variable modeling, including latent class analysislatent transition analysis, and their extensions. At The Methodology Center, I work primarily with Stephanie Lanza and John Dziak.

Recent Grants

Center for Prevention and Treatment Methodology

National Institute on Drug Abuse: P50-DA-10075 (2010-2015)

Role: Co-investigator (PI: Linda M. Collins)



Recent Publications

Lanza, S. T., Schuler, M. S., & Bray, B. C. (in press). Latent class analysis with causal inference: The effect of adolescent depression on young adult substance use profile. In A. von Eye, & W. Wiedermann (Eds.), Causality and Statistics. Hoboken, NJ: Wiley.

Acheson, A., Wijtenburg, A. S., Rowland, L. M., Winkler, A., Gaston, F., Mathias, C. W., ... Kochunov, P. (2014). Combining diffusion tensor imaging and magnetic resonance spectroscopy to study reduced frontal white matter integrity in youths with family histories of substance use disorders. Human Brain Mapping, 35(12), 5877-5887. doi: 10.1002/hbm.22591 PMCID: PMC4219410

Bray, B. C., Foti, R. J., Thompson, N. J., & Wills, S. F. (2014). Disentangling the effects of self leader perceptions and ideal leader prototypes on leader judgments using loglinear modeling with latent variables. Human Performance, 27(5), 393-415. doi: 10.1080/08959285.2014.956176 PMC Exempt – Not NIH Funded

Bray, B. C., Lanza. S. T., & Tan, X. (2014). Eliminating bias in classify-analyze approaches for latent class analysis. Structural Equation Modeling: A Multidisciplinary Journal. Advance online publication. doi: 10.1080/10705511.2014.935265 NIHMSID: NIHMS595254

Bray, B. C., Lee, G. P., Liu, W., Storr, C. L., Ialongo, N. S., & Martins, S. S. (2014). Transitions in gambling participation during late adolescence and young adulthood. Journal of Adolescent Health, 55(2), 188-194. doi: 10.1016/j.jadohealth.2014.02.001 PMCID: PMC4108554

Lanza, S. T., Cooper, B. R., & Bray, B. C. (2014). Population heterogeneity in the salience of multiple risk factors for adolescent delinquency. Journal of Adolescent Health, 54(3), 319-325. doi: 10.1016/j.jadohealth.2013.09.007 PMCID: PMC3943167

Ridenour, T. A., Halliburton, A., & Bray, B. C. (2014). Does DSM-5 nomenclature for inhalant use disorder improve upon DSM-IV? Psychology of Addictive Behaviors. Advance online publication. doi: 10.1037/adb0000007 NIHMSID: NIHMS595260

James, L. M., Mathias, C. W., Bray, B. C., Cates, S. E., Farris, S. J., Dawes, M. A., … Dougherty, D. M. (2013). Acquisition of rater agreement for the Stressful Life Events Schedule. Journal of Alcoholism and Drug Dependence, 1(5), 1-5. doi: 10.4172/2329-6488.10000124 PMC Exempt – Open Access

Lanza, S. T., Bray, B. C., & Collins, L .M. (2013). An introduction to latent class and latent transition analysis. In J. A. Schinka, W. F. Velicer, & I. B. Weiner (Eds.), Handbook of psychology (2nd ed., Vol. 2, pp. 691-716). Hoboken, NJ: Wiley.

Lanza, S. T., Tan, X., & Bray, B. C. (2013). Latent class analysis with distal outcomes: A flexible model-based approach. Structural Equation Modeling: A Multidisciplinary Journal, 20(1), 1-26. doi: 10.1080/10705511.2013.742377 NIHMSID: NIHMS591510

Smith, R. C., Coyle, P. T., Baldner, C., Bray, B. C., & Geller, E. S. (2013). A field investigation of perceived behavioral control and blood alcohol content: A pattern-oriented approach. Addictive Behaviors, 38(4), 2080-2083. doi: 10.1016/j.addbeh.2013.01.003 PMC Exempt – Not NIH Funded

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