Evaluating evidence-based crime interventions, crime and place, quantitative methods, and program evaluation
Matthew Nelson is a doctoral candidate in the Criminology, Law, and Society Department at George Mason University and a graduate research assistant at the Center for Evidence-Based Crime Policy. He received a M.A. in Criminal Justice from the Pennsylvania State University in 2011. Since 2013, Matthew has worked for Dr. David Weisburd as project manager for the NIDA Community Health and Safety Study. Additionally, he provides research assistance for the Homeland Security Investigations community impact study. His dissertation entitled, "Understanding the relationship between sample size, effect size, and statistical power in criminology: A further examination of the Weisburd paradox," focuses on better understanding how research artifacts and p-hacking may explain the inverse relationship between sample size and effect size in experimental research.