David M Day Author

David M. Day is Professor in the Department of Psychology at Ryerson University in Toronto, Canada. He is a registered psychologist who received his PhD in 1990 in applied social psychology from the University of Windsor. His research interests are in the areas of developmental criminology, risky behavior among young people, and access to justice for crossover youth. Margit Wiesner is Associate Professor in the Department of Psychological, Health, and Learning Sciences at the University of Houston. She received her PhD in developmental psychology in 1999 from the Friedrich Schiller University of Jena, Germany. Her research interests include longitudinal modeling of trajectories of offending and substance use, youth violence exposure, and measurement invariance of mental health screening instruments.