Joanna Weill is an applied social psychologist working to reduce the jail population in New York City. Recent focuses includes case processing delay, bail reform, and racial disparities.She has also conducted research on the following topics: reentry from prison and jail, intergroup relations, public attitudes towards prison reform, policing, correctional officer psychology, adverse childhood experiences, risk factors for criminal behavior, solitary confinement, the death penalty, and death qualification.She has training in a variety of research and statistical methods, including survey, interview, randomized control trials (field experiments), lab experiments, social network analysis, univariate and multivariate regression, structural equation modeling, and factor analysis.