Find Faculty Members at MUSC.

Colleen A Halliday PhD

Provider Image
  • Assistant Professor
  • College of Medicine
  • Psychiatry and Behavioral Sciences
Faculty email addresses should not be used to seek medical advice or to make medical appointments. Please visit MyChart for medical appointments or to contact your provider.


Office Location


Dr. Halliday received her Ph.D. in clinical psychology from the University of California, Los Angeles in 1999 and completed her internship at the Charleston Consortium Psychology Internship Training Program. She joined the MUSC faculty in 1999. After a career hiatus due to child rearing beginning in 2005, she rejoined the faculty full time in 2015. Dr. Halliday currently serves as the Director of Research Training for the internship program.


Dr. Halliday's research interests broadly pertain to understanding, preventing, and addressing racial/ethnic disparities in antisocial behavior, other mental health problems, and substance use children and adolescents. Her particular areas of interest are in 1) the effects of direct and vicarious racial/ethnic discrimination on youth mental health and behavior outcomes and the mechanisms these effects, and 2) schools as sources of racial/ethnic disparities in youth mental health and behavior outcomes as well as contexts for intervention to reduce these disparities. Dr. Halliday has received funding both as a principal investigator and as a co-investigator from the National Institute on Minority Health and Health Disparities (NIMHD), the National Institute of Mental Health (NIMH), the National Institute on Drug Abuse, and the National Institute of Justice and has collaborated on several other research projects funded by National Institutes of Health and other agencies. Currently, she is principal investigator on an NIMHD-funded R01, which is a school-based randomized controlled trial to examine the effects of integrating a multilevel intervention to address racial/ethnic discrimination into violence prevention as a means to reduce disparities in youth violent/aggressive behavior. In addition, she serves as the principal investigator on a study funded by the William T. Grant Foundation to examine the effects of teacher unconscious racial bias training on students academic and behavioral outcomes. She is also currently the principal investigator on an NIMH-funded administrative supplement to understand the roles of racial discrimination and race-related traumatic events on racial disparities in youth anxiety. Dr. Halliday has served on the editorial board for Developmental Psychology and as an ad hoc reviewer for several other scholarly journals.