In summary, piloting the Pyramid Model in private center-based settings resulted in improved use of effective teaching practices, reduced referral identification of children, and improved children's confidence and independence. Study findings reflect that classrooms were prepared for implementation and were more favorable than previous studies, and similar effects may be observed upon scaling but with classrooms that are likely less ready than those reflected in this study. Finally, scaling is contingent on adequate statewide staffing, planning time, and related resources, particularly for classrooms located in private center-based settings. (author abstract)