Barton, Erin E. PhD, BCBA-D; Lissman, Dana Cohen MS
Department of Special Education, Vanderbilt University (Dr Barton); and University of Oregon (Ms Lissman).
Correspondence: Erin E. Barton, PhD, BCBA-D, Department of Special Education, Vanderbilt University, 230 Appleton Pl, Peabody 228, Nashville, TN 37203 ([email protected]).
The authors acknowledge the assistance provided by Maria Pomes and Gerry Morgan in the conduct of this study. This study was greatly facilitated by the staff, children, and families of Early Childhood CARES, Eugene, OR.
The authors declare no conflict of interest.