Utilizing t-Test and One-Way Analysis of Variance to Examine Group Differences

Erin Farley, Ph.D.
Research Associate
Justice Research and Statistics Association

Erin J. Farley joined the JRSA staff in May 2015 as a Research Associate working on the Pre-Trial Justice Institute Project. She earned her B.S. in Psychology from Virginia Tech and her Ph.D. in Criminology from the University of Delaware. Prior to working at JRSA Dr. Farley was a Senior Research Associate at the Center for Court Innovation in NYC where she worked on a number of projects including an evaluation of Intelligence Driven Prosecution in the Manhattan District Attorney's Office, the Manhattan Mental Health Court, and a randomized trial of an evidence-based assessment protocol in New York City drug courts. She has co-authored reports on indigent defense reforms in Brooklyn, as well as the Adolescent Diversion Program, Judicial Diversion, Improving Courtroom Communication, and the Bronx Family Treatment Court.

Stan Orchowsky, Ph.D.
Director of of Research
Justice Research and Statistics Association

Stan Orchowsky has over 30 years' experience in criminal justice research, policy development, and program evaluation. He has taught numerous classes on research methods and performance measurement. Stan formerly served as Evaluation Section Chief for the Virginia Statistical Analysis Center at the Department of Criminal Justice Services.