Justin Karr

Justin Karr
Office: COR A137
Area of expertise

Clinical Neuropsychology

Research interests

As an undergraduate, I focused primarily on the influences of omega-3 fatty acids on cognitive abilities throughout the lifespan; but for my Master’s research, I shifted attention to the impact of mild TBI on both executive functions and intra-individual variability among young adults. My general research interests focus on a variety of aims associated with the executive functions of both normative and clinical populations. While at UVic, I have developed a new interest in an array of research methodologies, including structural equation modeling, latent growth modeling, and meta-analysis; and I have incorporated a variety of these methods in evaluating executive functions among children, young adults with mild TBI, and older adults with or without cognitive impairment. In addition to my research pursuits, I have become extensively involved in psychology leadership and student advocacy, and I currently serve as the Chair-elect of the American Psychological Association of Graduate Students (APAGS).

Representative publications

Garcia-Barrera, M. A., Karr, J. E., Duran, V., Direnfeld, E. Y., & Pineda, D. A. (2015). Cross-cultural validation of a behavioral screener for executive functions: Guidelines for clinical use among Colombian children with and without ADHD. Psychological Assessment, 27(4), 1349-1363. doi:10.1037/pas0000117

Karr, J. E., Areshenkoff, C. N., Duggan, E. C., & Garcia-Barrera, M. A. (2014). Blast-related mild traumatic brain injury: A Bayesian random-effects meta-analysis on the cognitive outcomes of concussion among military personnel. Neuropsychology Review, 24(4), 428-444. doi:10.1007/s11065-014-9271-8

Karr, J. E., Areshenkoff, C. N., & Garcia-Barrera, M. A. (2014). The neuropsychological outcomes of concussion: A systematic review of meta-analyses on the cognitive sequelae of mild traumatic brain injury. Neuropsychology, 28(3), 321-336. doi:10.1037/neu0000037

Representative presentations

Karr, J. E., Garcia-Barrera, M. A., & Kibby, M. Y. (August 7, 2016). Sensitivity/Specificity of an Executive Function Screener at Detecting ADHD and Reading Disability. Poster presented at the 2016 Annual Convention of the American Psychological Association, Denver, Colorado.

Karr, J. E., & Garcia-Barrera, M. A. (August 8, 2015). Bifactor Modeling of a Multidimensional Screener for the Behavioral Assessment of Executive Functioning. Paper presented at the 2015 Annual Convention of the American Psychological Association, Toronto, Ontario.

Karr, J. E., Garcia-Barrera, M. A., & Kamphaus, R. W. (February 8, 2013).  Modeling Longitudinal Invariance of Executive Functions in Children. Paper presented at the Forty-First Annual Meeting of the International Neuropsychological Society, Waikoloa, Hawaii.

Recent awards

  • Vanier Canada Graduate Scholarship
  • Rhodes Scholarship Finalist
  • APA Division 40 Society for Clinical Neuropsychology Student Research Award
  • APF/COGDOP William and Dorothy Bevan Graduate Student Research Scholarship
  • APF/COGDOP Peter and Malina James & Dr. Louis P. James Legacy Graduate Student Research Scholarship
  • Alexander and Helen Stafford MacCarthy Muir Graduate Scholarship
  • Mrs. Annie Greskiw Graduate Award
  • Norma M. Wilson Graduate Scholarship
  • Dr. Robert Michael Peet Graduate Scholarship
  • National Collegiate Athletic Association (NCAA) Postgraduate Scholarship
  • The Honor Society of Phi Kappa Phi Graduate Fellowship Award
  • UVic Faculty of Graduate Studies Fellowship