Verbal self-regulation over time in preschool children at risk for attention and behavior problems.

This study is a prospective, longitudinal attempt to explore behavioral self-regulation, private speech, and speech-action coordination in a sample of behaviorally at-risk preschool children. Preschoolers (N = 72) were classified at age 3 years into a behaviorally at-risk group or a comparison group on the basis of preschool teacher behavioral ratings. Children were videotaped on four different occasions across the span of almost 2 years as they completed problem-solving tasks, and private speech, task performance, executive functioning, and speech-action coordination were analyzed. Children identified 2 years earlier as being hard to manage were at risk for continued behavior problems at elementary school entry. Behaviorally at-risk children consistently used more spontaneous private speech than comparison children across all observations. Both groups of children demonstrated a pattern of increasing silence with task success over time. No group differences were observed in children's speech-action coordination at age 5 years. Intraindividual developmental changes in private speech for both groups were associated with task performance, speech-action coordination, and executive functioning at age 5, but not with teacher- and parent-reported problem behavior.