Asssociate Professor
Psychology Department
Westfield State University
Phone: (413) 572-5380
Email: landrade@westfield.ma.edu
Google Scholar Profile

My broad research interest is to investigate how behavioral principles can positively impact health behaviors, especially in regards to health disparity issues. My research has focused on impulsive decision-making (within the framework of behavioral economics), and its relationship to treatment and relapse. I have examined impulsivity from the context of delay and probability discounting in samples of alcohol and drug abusing patients as well as pathological gamblers. My research interests also extend to the application of contingency management—an empirically-supported intervention that provides tangible reinforcement contingent on target behaviors—to promote abstinence from drugs and medication adherence, and to increase job-seeking activities and physical exercise. 

Undergraduate Courses:

Introduction to Psychology
Research Methods in Psychology
Psychology of Learning
Capstone: Choice, Impulsivity, and Addiction

Graduate Courses:

Verbal Behavior
Theoretical Foundations of Behavior Analysis
Single Subject Design and Methodology

Journal Articles

Andrade, L. F. & Hackenberg, T. D. (2016). Substitution effects in a generalized token economy with pigeons. Journal of the Experimental Analysis of Behavior, 107, 123-135.

Andrade, L. F., Levi, R., & Petry, N. M. (2014). Associations between antisocial personality disorder and sex on discounting rates. The Psychological Record, 64, 639-646.

Andrade, L. F., Barry, D., Litt, M., & Petry, N. M. (2014). Maintaining high levels of ambulatory activity in sedentary adults with reinforcement thinning schedule. Journal of Applied Behavior Analysis. Advance online publication. doi: 10.1002/jaba.147

Andrade, L. F., & Petry, N. M. (2014). White problem gamblers discount less steeply than their African American and Hispanic counterparts. Psychology of Addictive Behaviors, 28, 599–606.

Chadwick, J., Andrade, L. F., Altice, F. L., Petry, N. M. (2014). Correlates of having never been HIV tested among entrants to substance abuse treatment clinics: empiric findings from real-world New England settings. Journal of Psychoactive Drugs, 46, 208–214.

Andrade, L. F., Carroll, K, & Petry, N. M. (2013). Marijuana use is associated with risky sexual behaviors in treatment-seeking substance abusers. The American Journal of Drug and Alcohol Abuse, 39, 266–271.

Andrade, L. F., Alessi, S., M., & Petry, N. M. (2013). The effects of alcohol problems and smoking on delay discounting in individuals with gambling problems. Journal of Psychoactive Drugs, 45, 241–248.

Petry, N. M., Andrade, L. F., Barry, D., Byrne, S. (2013). A randomized study of reinforcing ambulatory exercise in older adults. Psychology and Aging, 28, 1164–1173.

Petry, N. M., Andrade, L. F., Rash, C., Cherniack, M.G. (2013). Engaging in job-related activities is associated with reductions in employment problems and improvement in quality of life. Psychology of Addictive Behaviors, 28, 268–275.

Rash, C.J., Andrade, L. F., & Petry, N.M. (2013). Income received during treatment does not affect response to contingency management treatments in cocaine-dependent outpatients. Drug and Alcohol Dependence, 132, 528–534.

Andrade, L. F., Alessi, S. M., & Petry, N. M. (2012). The impact of contingency management on quality of life among cocaine abusers with and without alcohol dependence. The American Journal on Addictions, 21, 47–54.

Andrade, L. F., & Petry, N. M. (2012). Delay and probability discounting in pathological gamblers with and without substance use problems. Psychopharmacology, 219, 491–499.

Andrade, L. F., & Hackenberg, T. D. (2012). Saving the best for last? A cross-species analysis of choices between reinforcer sequences. Journal of the Experimental Analysis of Behavior, 98, 45–64.

Book Chapters

Andrade, L. F., & DeFulio, A. (2017). Contingency management treatments for drug use. In Todorov, J. C (Ed.). Trends in Behavior Analysis Vol.2.,4-37.

Andrade, L. F., & Petry, N. M. (2017). Behavioral economics and treatment engagement. In O’Donohue, W. T., James, L., Snipes, C. (Eds.), Practical Strategies and Tools to Promote Treatment Engagement, 11-24.

Petry, N. M., Andrade, L. F., Alessi, S. M., & Rash, C. J. (2016). Gambling and impulse control disorders. In Norcross, J. C., VandenBos, G. R., Freedheim, D. K. APA Handbook of Clinical Psychology – Volume IV: Psychopathology and Health. 

Andrade, L. F., & Petry, N. M. (2014). Contingency management treatments for substance use disorders and healthy behaviors. In McSweeney, F. K., & Murphy, E. (Eds.). The Wiley Blackwell Handbook of Operant and Classical Conditioning, 627–644. 

Encyclopedia Entry

Andrade, L. F. (2019). Homework compliance strategies. In Morgan, R. D. (Ed.). The Sage Encyclopedia of Criminal Justice, 607-608.