His area of expertise is in adolescent peer relationships and focuses on peer status and aggression. Researchers have identified two forms of status: Preference (being well-liked) and Popularity (being high status and visible). As individuals move into middle school these two constructs become less correlated over time. We also start to see popular adolescents become more likely to use aggressive behaviors (particularly social manipulation techniques) and his research investigates the effects this has on their social relationships. Additionally, popularity research has not been explored much after the high school years and he has started to look at this as well.
Peer Status & Popularity
Aggressive Behaviors (especially Relational/Social Aggression)
Risk-Taking Behaviors
Friendships and Mutual Antipathies/Enemies
Fraternities and Sororities