1. Jennifer Di Noia, PhD, is an Associate Research Scientist at Columbia University School of Social Work, New York, New York. Isobel R. Contento, PhD, is Professor of Nutrition and Education at Teacher's College, Columbia University, New York, New York. James O. Prochaska, PhD, is Director of the Cancer Prevention Research Consortium and Professor of Clinical and Health Psychology at the University of Rhode Island, Kingston, Rhode Island