Samuel L. Odom, PhD, is Director of the Frank Porter Graham Child Development Institute and Professor in the School of Education at the University of North Carolina at Chapel Hill. His current work focuses on the efficacy of preschool readiness programs for at-risk children, treatment efficacy of early intervention for young children with autism, and professional development related to autism spectrum disorder. Robert H. Horner, PhD, is Alumni/-n/Knight Professor of Special Education and interim Associate Dean for Research in the College of Education at the University of Oregon. His resear...