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Washington State University
College of Arts and Sciences Department of Psychology

Celestina Barbosa-Leiker

Vice Chancellor for Research
Washington State University Health Sciences Spokane

Ph.D. Washington State University, 2008

Contact Information

Office: SAC 503M (Spokane campus)
Phone: (509) 324-7477

Research Interests

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.