Principal Beliefs Predict Responses to Individual Students’ Misbehavior

National policies have targeted widespread exclusionary discipline in schools which is associated with negative academic outcomes. Principals play an important role in making disciplinary decisions, yet little is understood about how their mindsets might impact disciplinary decisions. We hypothesized that principals' mindsets regarding the purpose of discipline (exclusion versus prevention) would predict their responses to misbehavior. In a random nation-wide sample (N=234), principals responded to misbehavior by a hypothetical Black or White student. Exclusion beliefs predicted more severe discipline, while prevention beliefs predicted greater endorsement of referring the student to a school counselor. Principal prevention mindsets also predicted less exclusionary discipline in real-world contexts.