This research examined alternative mechanisms in the etiology of attachment disorganization. The authors hypothesized that negative intrusive parenting would significantly predict children's attachment disorganization at age 12 months within a diverse community sample. Of more substantial interest, the authors tested moderational mechanisms in the…

We evaluated the extent to which the externalizing behavior construct is self-organizing in the first 2 years of life. Based on dynamic systems theory, we hypothesized that changes in physical aggression, defiance, activity level, and distress to limitations would each be predicted by earlier manifestations of one another. These hypotheses were…