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Mark (Harmon) Leymon
Mark (Harmon) Leymon
  • Assistant Professor, Criminology & Criminal Justice Division
  • Ph.D., Sociology, University of Oregon
  • MS, Sociology, University of Oregon
  • BA, Sociology, Western Washington University
  • BA, Psychology, Western Washington University



  • Dr. Leymon received his Ph.D. from the University of Oregon and his published work appears under the name Mark Harmon. Dr. Leymon is a quantitative research methodologist and justice policy researcher.  His research focuses on the effects of sentencing reforms on a number of fronts, most notably the consistent and pervasive racial and ethnic disparities in imprisonment.  He has studied the connection between politics, the economy, and criminal justice policy and the impacts on people of color. He larger program of research focuses on studying the factors driving public policy changes and explaining their disproportionate impact on people of color.  

    Dr. Leymon also works to develop more robust statistical models, including improved methodologies for conducting panel analysis. His continuing interest is on developing statistical methods that provide more reliable and valid results.   Utlimately, the goal of Dr. Leymon's methodological research is produce improved tools for measuring the processes and impact of the criminal justice system, in order to better inform policymaking and recommendations for change.

    Curriculum Vita (pdf)

    Faculty Videos

  • Course Spotlight: CCJ 380

  • Why Study Research Methods?



  • Current Courses
  • CCJ 380: Criminal Justice Research (Campus, CCJ Online)
    CCJ 410: The Science and Practice of Profiling (CCJ Online)
    CCJ 465: Criminology and Social Justice (Campus)
    CCJ 520/620: Analysis of Crime and Justice Data (Campus)

    Contact Information
    570H URBN
    (503)725-8070
    mleymon@pdx.edu