Mary Ann McColl, PhD is a professor in occupational therapy at Queen's University in Kingston, Ontario, and director of research at Queen's Centre for Health Services and Policy Research. She was formerly the head of occupational therapy at Queen's, and before that she was director of research at Lyndhurst Spinal Cord Centre, Toronto, Ontario, and assistant professor in occupational therapy at the University of Toronto. She is one of the authors of the Canadian Occupational Performance Measure, as well as several other books, including Introduction to Disability (McColl & Bickenbach, 1998).   

Mary Law, PhD is a professor and associate dean of rehabilitation science, associate member of the Department of Clinical Epidemiology and Biostatistics, and co-director of CanChild Centre for Childhood Disability Research at McMaster University, Hamilton, Ontario. Her clinical and research interests centre on the development and validation of client-centered outcome measures, evaluation of occupational therapy interventions with children, the effect of environmental factors on the participation of children with disabilities in day-to-day activities, and transfer of research knowledge into practice.   

Debra Stewart, MSc is an assistant clinical professor in the School of Rehabilitation Science and a co-investigator of CanChild Centre for Childhood Disability Research. She also provides private, community-based occupational therapy services to children and youth with special needs as part of REACH Therapy Services.   

Lorna Doubt, MSc has been an adjunct lecturer in School of Rehabilitation Therapy at Queen's University and is currently a paediatric therapy consultant for Northumberland Child Development Centre, Port Hope, and case manager for Northern Lights Vocational Services, Minden, Ontario.   

Nancy Pollock, MSc is associate clinical professor, School of Rehabilitation Science and co-investigator, CanChild Centre for Childhood Disability Research. Her research, teaching, and clinical practice focus on children and adolescents with developmentally related occupational performance problems. She is also one of the authors of the Canadian Occupational Performance Measure.   

Terry Krupa, PhD is an assistant professor and chair of the Occupational Therapy Program at Queen’s University. Her research interests focus on the processes by which individuals with psychiatric disabilities come to participate in meaningful community occupations. Dr. Krupa is also involved in examining interpretations of disability and how this influences service delivery.   

Penny Bryden, PhD is an associate professor and Head of the Department of History at Mount Allison University. She is the author of Planners and Politicians: Liberal Politics and Social Policy, 1957-1968, which is about the design and introduction of a national Medicare program in Canada.