1. Jane E. Roberts, PhD, is Scientist, FPG Child Development Institute, University of North Carolina at Chapel Hill. Mailing address: 517 South Greensboro Street, Carrboro, NC 27510; jane_roberts@unc.edu
2. Linda King-Thomas, MHS, is Director, Developmental Therapy Associates, Inc., Durham, NC
3. Maria L. Boccia, PhD, is Scientist, FPG Child Development Institute, University of North Carolina at Chapel Hill