Celestina Barbosa-Leiker
Associate Dean for ResearchAssociate Professor 509-324-7477 SNRS 121 412 E. Spokane Falls Blvd., Spokane, WA 99202-2131

Dr. Celestina Barbosa-Leiker is the Associate Dean for Research and an Associate Professor in the College of Nursing at Washington State University (WSU). She is also the Director for the Program of Excellence in Addictions Research and a member of the Committee on Cannabis Research and Outreach at WSU. Dr. Barbosa-Leiker’s primary research investigates gender differences in opioid use. He research has demonstrated sex differences in the measurement of opioid withdrawal, relapse while in treatment, and predictors of relapse. Her additional line of research focuses on the transition from pregnancy to parenthood in women with substance use disorders. She is currently leading an interdisciplinary research team to assess mothers, infants, and healthcare providers in order to better care for women with opioid use disorders, as well as for women using cannabis during pregnancy. The results of these studies will help better educate healthcare providers and pregnant women, inform maternal and infant health policy, and improve standards of care. Dr. Barbosa-Leiker has methodological expertise in psychometrics and longitudinal latent variable modeling. She serves a statistical mentor for American Indian/Alaska Native faculty through a NIH P20 grant titled “Collaborative Action toward Community Health.”


  • PhD in Psychology, Washington State University, Pullman, WA
  • MS in Psychology, Washington State University, Pullman, WA
  • BS in Psychology, Bridgewater State University, Bridgewater, MA



Substance use, cardiovascular and chronic kidney disease, mental health, health disparities, health-related surveys


Alcohol use, opiate withdrawal, psychological stress, psychometrics, longitudinal data analysis, clinical trial data.


  • Member, Psychologists for Social Responsibility, 2006-present
  • Member, American Psychological Association, 2007-present
  • Member, American Psychological Association Division 5- Evaluation, Measurement and Statistics, 2007-present


  • Washington State University College of Nursing Excellence in Research, 2012

PUBLICATIONS (selected from 65)

McPherson, S., Howell, D., Lewis, J. M., Barbosa-Leiker, C., Metoyer, P. B., & Roll, J. M. (in press). Self-Reported Smoking Effects and Comparative Value Between Cigarettes and High Dose E-cigarettes in Nicotine Dependent Cigarette Smokers. Behavioural Pharmacology.

Ward, L. D., French, B. F., Barbosa-Leiker, C, & Iverson. A. E. (2016). Application of Exploratory Factor Analysis and Item Response Theory to Validate the Genomic Nursing Concept Inventory. Journal of Nursing Education, 55, 9-17.

McPherson, S., Brooks, O., Barbosa-Leiker, C., Lederhos, C., Lamp, A., Murphy, S., Layton, M., & Roll, J. (accepted). Examining stimulant use and treatment attendance as parallel outcomes in two contingency management randomized clinical trials. Journal of Substance Abuse Treatment.

Schenk, E., Corbett, C., Barbosa-Leiker, C., Postma, J., &. Butterfield, P. (accepted). Psychometric Properties of the Nurses’ Environmental Awareness Tool (NEAT). Journal of Nursing Measurement.

Mamey, M., Barbosa-Leiker, C., McPherson, S., Burns, L., Parks, C.D, Roll, J. (accepted). An application of analyzing the trajectories of two disorders: A parallel piecewise growth model of substance use and attention deficit/hyperactivity disorder. Experimental and Clinical Psychopharmacology.

Sleutal, M., Barbosa-Leiker, C., & Wilson, M. (accepted). Psychometric testing of a modified evidence-based practice instrument. Journal of Nursing Measurement.

Schenk, E., Butterfield, P., Postma, J., Barbosa-Leiker, C., & Corbett, C. (accepted). Creating the Nurses’ Environmental Awareness Tool (NEAT). Workplace Health & Safety.

Katz, J. R., Barbosa-Leiker, C., & Benavides-Vaello, S. (in press). Measuring the Success of a Pipeline Program to Increase Nursing Workforce Diversity. Journal of Professional  Nursing.

Senger, B., Ward, L., Barbosa-Leiker, C., & Bindler, R. (2015). Stress and coping of parents caring for a child with Mitochondrial Disease. Applied Nursing Research.

Barbosa-Leiker, C., McPherson, S., Mamey, M., Burns, L., Layton, M., Roll, J., & Ling W. (2015). Examining the factor structure of the Clinical Opiate Withdrawal Scale. Drug and Alcohol Dependence, 152, 218-223.

Clark, C.M., Barbosa-Leiker, C., Gill, L., & Nguyen, D.T., &. (2015). Student. Revision and psychometric testing of the Incivility in Nursing Education (INE) survey: Introducing the INE-R. Journal of Nursing Education, 54, 306-315.

Barbosa-Leiker, C., Fleming, S., Hollins Martin, C.J., & Martin, C. (2015).Psychometric properties of the Birth Satisfaction Scale-Revised (BSS-R) for US mothers. Journal of Reproductive and Infant Psychology, 33. 1-8.

Bakosh, L.S., Snow, R.M., Tobias, J.M., Houlihan, J.L., Barbosa-Leiker, C. (2015). Maximizing mindful learning: An innovative mindful awareness intervention improves elementary school students’ quarterly grades. Mindfulness.

Strand, P.S., Barbosa-Leiker, C., Arellano, M., & Downs, A. (2015). Exploring the bi-directionality of emotion understanding and preschooler classroom behavior: A latent variable analysis. Social Development, 24, 579-600.

Wilson, M., Roll, J., Corbett, C., Barbosa-Leiker, C. (2015). Empowering patients with persistent pain using an Internet-based self-management program. Pain Management Nursing. Advance online publication June 15, 2015. DOI:  http://dx.doi.org/10.1016/j.pmn.2014.09.009 .

McIvain, S., Miller, B., Lawhead, B., Barbosa-Leiker, C., & Anderson, A. (2015). Piloting yoga and the Trait Emotional Intelligence Questionnaire on a residential behavioral health unit. Journal of Psychiatric and Mental Health Nursing, 22, 199-207.

McPherson, S., Barbosa-Leiker, C., Mamey, M., McDonell, M., Enders, C. K., & Roll, J. (2015). A ‘Missing Not at Random’ (MNAR) and ‘Missing at Random’ (MAR) growth model comparison with a buprenorphine/naloxone clinical trial. Addiction, 110, 51-58.


Updated 3/27/18