Sarah M. Irby, Ph.D., BCBA

Clinical Assistant Professor and Director of the School MA/EdS Program

Psychology Building, Room 306
Office Hours
Contact for Hours
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PRONOUNS: she/her/hers


  • Ph.D., University of Memphis (2014)
  • M.S., University of Memphis (2011)
  • B.A., University of Memphis (2008)

Research Interests

  • Autism Spectrum Disorders
  • Attention-Deficit/Hyperactivity Disorder
  • Intellectual and Developmental Delays
  • Psychoeducational assessment
  • Applied Behavior Analysis

Representative Publications

Ryan, T., Brunson McClain, M., Merrill, A., Dahir, N., Harris, B., & Irby, S. M. (2021). Preliminary investigation of interdisciplinary trainee’s improvement in knowledge about autism spectrum disorder. Advances in Autism. Published online February 19, 2021.

Irby, S. M., & Floyd, R. G. (2017). The exchangeability of brief intelligence tests for children with intellectual giftedness: Illuminating error variance components’ influence on IQs. Published online September 27, 2017.
Irby, S. M., & Floyd, R. G. (2013). Test review. [Review of the test Wechsler Abbreviated Scales of Intelligence, Second Edition].

Floyd, R. G., Shands, E. I., Alfonso, V. C., Phillips, J. F., Autry, B. K., Mosteller, J. A., Skinner, M., & Irby, S. M. (2015). A systematic review and psychometric evaluation of adaptive behavior scales and recommendations for practice. Journal of Applied School Psychology, 31, 83-113.

Norfolk, P. A., Farmer, R. L., Floyd, R. G., Woods, I. L., Hawkins, H. K., & Irby, S. M. (2015). Norm block sample sizes: A review of 17 individually administered intelligence tests. Journal of Psychoeducational Assessment, 33, 544-555.