Psychology Department

Andrew Lac

Andrew Lac, PhD

Assistant Professor

Columbine Hall 4049

Work : 719-255-4151

Office Hours

Tuesday:  12:05pm-1:05pm
Thursday:  11:15am-12:15pm

Professor Andrew Lac joined the Psychology Department at UCCS in 2015.  Previously, he was affiliated with Claremont Graduate University as research faculty and Loyola Marymount University as visiting faculty.

Areas of Interest

Substance Use, Addictive Behaviors, Close Relationships, Psychometrics, Scale Development and Validation


PhD, Psychology, Claremont Graduate University
MA, Psychology, California State University, Los Angeles
MPA, California State University, Dominguez Hills
BS, Cognitive Science, University of California, Los Angeles

Courses Taught

PSY 5810 - Research Statistics and Methodology I
PSY 5820 - Research Statistics and Methodology II
PSY 5830 - Applied Multivariate Techniques I


Professor Lac's research focuses on the psychology of substance use and addictive behaviors. His topics of interest include alcohol, marijuana, other substances (virtually anything that can be ingested or inhaled), sexual activity, pornography, internet compulsions, and other quirky, compulsive, or addictive behaviors that pervade people's lives. These topics are examined from various perspectives, including attitudes and beliefs, motivations and expectations, feelings and emotions, risk factors, protective factors, prevention, brief interventions, peer norms, family practices and history, dyadic relationships (e.g., best friends, parent-child, siblings, twins), behavioral genetics, and the role of social media. Furthermore, he publishes on scale development and validation.

Representative Publications:

*Student coauthor

Lac, A., & *Donaldson, C. D. (in press). Higher-order and bifactor models of the Drinking Motives Questionnaire: Evaluating competing structures using confirmatory factor analysis. Assessment.

Lac, A., & *Handren, L., Crano, W. D. (in press) Conceptualizing and measuring weekend versus weekday alcohol use: Item response theory and confirmatory factor analysis. Prevention Science.

Lac, A., & Crano, W. D. (in press). Marijuana use. In Encyclopedia of Adolescence (2nd ed), R. J. R. Levesque (Ed.). Switzerland: Springer International.

Lac, A. & *Donaldson, C. D. (2016). Alcohol attitudes, norms, behavior, and personality traits longitudinally classify nondrinkers, moderate drinkers, and binge drinkers using discriminant function analysis. Addictive Behaviors, 61, 91-98.

Kenney, S. R., Lac, A., Hummer, J., & LaBrie, J. W. (2014). Development and validation of the Hookup Motives Questionnaire. Psychological Assessment, 26, 1127-1137.

Napper, L. E., Hummer, J. F. Lac, A., & LaBrie, J. W. (2014). What are other parents saying? Perceived parental communication norms and the relationship between alcohol specific parental communication and college student drinking. Psychology of Addictive Behaviors, 28, 31-41.

Lac, A., & Crano, W. D., Berger, D., & Alvaro, E. M. (2013). Attachment theory and theory of planned behavior: An integrative model predicting underage drinking. Developmental Psychology, 49, 1579-1590.

Lac, A., & Berger, D. (2013). Development and validation of the Alcohol Myopia Scale. Psychological Assessment, 25, 738-747.

A comprehensive list of publications may be downloaded at

Professional Experience

Dr. Lac has served as statistical consultant for various institutions, including Harvard University, Loyola Marymount University, and University of Southern California. He is coauthor of a research methods textbook aimed at graduate students in the social sciences (authorship rotated): Crano, W. D., Brewer, M. & Lac, A. (2015). Principles and methods of social research (3rd ed.). New York: Routledge. Chapters span from experimental designs to structural equation modeling to meta-analysis. He also coauthored a Handbook of Psychology chapter that reviews the history of research methods.