Abstract: This study predicted social functioning of 4 year olds from the toddlers' traits of emotion regulation strategies and family factors. One hundred and seventy six toddlers were observed in laboratory situations. At 2 years of age, emotional regulation strategies were coded based on the children's reactions in 4 episodes: strange situation, toy and food delay, maternal separation(child alone), and maternal separation(with a strange adult). Four strategies were identified: problem solving, seeking social support, self soothing, and avoidance. At 4 years of age, the sociability and social withdrawal were observed when children were playing with unfamiliar peers, and performing on task behaviors during cleaning up and sorting tickets. It was found that emotional regulation strategies at 2 years could significantly predict children's social functioning at 4 years of age.

Key words: and 4 year olds children, strategies of emotion regulation, social functioning