William Medendorp, PhD is the owner of REA Analytics and serves as Principal Investigator there. William has provided evaluation and analysis for nearly 40 funded projects, including 25 multi-year Federal Grants. William has served as lead analyst for the agency for over 8 years and leads the agency in grant writing, project monitoring, measurement development, database construction, data management, analysis, and report production.  

William has extensive experience tracking populations struggling with substance use and/or mental illness with projects in community-based treatments for chronic mental illness, substance use treatment, Drug Courts, and Prisoner Reentry. These projects have provided experience conducting time-series analysis, quasi-experimental comparison group construction and analysis, and dose analysis. William graduated with a degree in psychology from Calvin College and recently completed his PhD in neuroscience at Central Michigan University with a focus on developmental risk factors for psychiatric disease.