Sandra W. Russ, PhD, a child clinical psychologist, is Professor of Psychology at Case Western Reserve University. Her research and publications focus on pretend play, creativity, and adaptive functioning in children. Dr. Russ has served as President of the Society for Personality Assessment; the Society of Clinical Child and Adolescent Psychology (APA Division 53); and the Society for the Psychology of Aesthetics, Creativity and the Arts (APA Division 10). She is the developer of the Affect in Play Scale.

Larissa N. Niec, PhD, is Professor of Psychology in the Clinical Psychology Doctoral Program at Central Michigan University (CMU) and Director of the CMU Parent-Child Interaction Therapy Clinic. Dr. Niec conducts basic and applied research on play, child maltreatment, and parent-child interaction therapy. The overarching goal of her research program is to reduce barriers to evidence-based treatment for children and families. She is involved in national efforts to increase the effectiveness of treatment dissemination to community therapists.