Friendships are important sources of support during adolescence. However, a growing literature indicates some adolescents co-ruminate, or talk with friends about problems in a way that is excessive, speculative, and negatively focused, which confers risk for internalizing problems. Still, previous research had not examined the types of problems…

Research has consistently demonstrated the negative consequences of depression on adolescents' functioning in peer and family relationships, but little work has examined how depressive symptoms affect the quality of adolescents' and emerging adults' romantic relationships. Five waves of data on depressive symptoms, romantic relationship conflict,…

This research provides an analysis of the relationship between a student's beliefs and mathematical behaviors over a seventeen-year period. Romina, the student of focus in this case study, was among the original participants in a longitudinal study which explored how students build mathematical ideas when working collaboratively on problem-solving…

Violence among American youth is a significant societal problem. The past decade witnessed juvenile arrests for violence, weapons, drugs, and curfew violations peak in the mid 90's. Analogous to the arrest trends for older juveniles, the arrest rate for young offenders rose 63% from 1987 until 1994 when it declined slightly. Since that time,…