Mirroring trends in the legal system, discipline within education has adopted zero-tolerance policies in an attempt to curb undesired behaviors in school. K-12 schools have expanded the use of exclusionary discipline policies for lesser offenses, giving way to the phenomenon known as the school-to-prison-pipeline (STPP), which disproportionately…

Beginning in the early 1990s, states and districts enacted zero-tolerance discipline policies that relied heavily on out-of-school suspensions. Recently, districts nationwide have revised these policies in favor of more tempered disciplinary responses. In 2012-2013, Philadelphia reformed its discipline policy to limit suspensions for nonviolent…

Researchers and others in the education community are concerned about over-reliance on exclusionary discipline such as out-of-school suspension (OSS) and expulsion. Exclusionary discipline is associated with lower student achievement, higher risk of drop-out or grade retention, and involvement in the juvenile justice system. In response, many…

Mounting evidence indicates that students of color are more likely than their white peers to receive exclusionary discipline (out-of-school suspensions and expulsions), but alleviating these disparities requires an understanding of what drives them. In this study, we use seven years of student- and infraction-level data from every public school in…