Edith G Arrington Editor

Diana T. Slaughter-Defoe, PhD, is the Constance E. Clayton Professor in Urban Education in the Graduate School of Education at the University of Pennsylvania.

Howard C. Stevenson, PhD, is associate professor of education and former chair of the Applied Psychology and Human Development Division in the Graduate School of Education at the University of Pennsylvania.

Edith G. Arrington, PhD, is a licensed psychologist and a project manager at the OMG Center for Collaborative Learning, Philadelphia, PA.

Deborah J. Johnson, PhD, is professor of human development and family studies at Michigan State University.