His research interests involve adolescent violence, socialization and marginalization, school bullying, race and ethnicity, and the adaptation of the children immigrants. He serves as on the editorial board for the journal of Youth Violence and Juvenile Justice and the Crime and Deviance Section of Sociology Compass. Dr. Peguero is also a member of the Racial Democracy, Crime, and Justice Network which holds the dual goals of advancing research on the intersection of race, crime and justice and of promoting racial democracy within the study of these issues by supporting junior scholars from under-represented groups.