Young children's emotional responses to new peers: The roles of behavioural inhibition and relationships

This study examined the extent to which young children's affect expressions during interactions with new peers are attributable to individual traits versus unique relationships, and how behavioral inhibition (BI) relates to these expressions. Using a longitudinal dyadic design collected between 2003 and 2008, 291 children (Mage = 24 months at baseline, 60% female, 69.7% White) were observed playing with unique age-and gender-matched peers annually from 24 to 60 months of age. Variability in chil