Temperament is important for considering differences among diagnostic groups and for understanding individual differences that predict problematic behavior. Temperament characteristics, such as negative affectivity, effortful control, and surgency (highly active and impulsive), are predictive of externalizing behavior in typically developing…

The friendships of 59 ethnically diverse (African American, European American, Latino, Middle Eastern, and West African) children enrolled in Head Start classes were assessed in the spring of the school year via a peer nomination technique and a roster rating method. Two types of behavior that earlier researchers found to be predictive of how well…