Preschool teachers report children’s challenging behavior as their greatest concern (Alkon, Ramler, & MacLennan, 2003; Joseph & Strain, 2003), but estimates show that fewer than 10% of young children who show early signs of problem behavior receive services (Kazdin & Kendall, 1998). These data suggest that preschool teachers do not have the training or resources to implement research-based strategies. The need for effective and efficient behavior support in early childhood is apparent, particularly in light of the long-term negative effects of early problem behavior.
Carter, Deborah R. and Van Norman, Renee K.. (2010). "Class-Wide Positive Behavior Support in Preschool: Improving Teaching Implementation Through Consultation". Early Childhood Education Journal, 38(4), 279-288.