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Stephen Tueller

Research Statistician


PhD, Quantitative Psychology, University of Notre Dame
MS, Research and Evaluation Methodology, Utah State University
BS, Psychology, University of Idaho

Dr. Tueller is a statistician and quantitative psychologist in RTI’s Division of Applied Justice Research. His program of research is focused on developing statistical models and software tools for research in criminal justice, juvenile justice, human trafficking, risk assessment, child welfare, substance use, and serious mental illness. He is an expert in risk assessment, R package development, developing models for partially classified data, and analyses for single subject and idiographic clinical trials.

Dr. Tueller currently leads the development of software to analyze data from, and conduct power analyses for, single subject and idiographic clinical trial (ICT) studies. He is also leading the validation of the Public Safety Assessment for the Arnold Ventures-funded Advancing Pretrial Policy and Research project, the analysis task for the third cohort of the National Study of Child and Adolescent Welfare, and the quantitative analyses for multiple projects examining the prevalence and impacts of human trafficking.

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