Robert G CrosbyRobert G. Crosby is Professor of Psychology at California Baptist University. A former youth pastor with over twenty years of experience in children's and youth ministry, he holds a PhD in educational psychology and is one of the world's leading schoars in the field of children's ministry research. Lori A. Crosby is a Licensed Marriage and Family Therapist and a Registered Play Therapist Supervisor who specializes in treating children who have experienced trauma. She has been serving in children's ministry for over twenty years. Read More Read Less