Child Psychopathology,
8th Edition

Eric Mash is a professor of psychology at the University of Calgary in Canada, where he enjoys teaching undergraduate classes in child psychopathology, behavior modification and developmental psychopathology, as well as graduate classes in clinical psychology, specifically in child psychopathology, child assessment and child psychotherapy. He earned his Ph.D. in clinical psychology at Florida State University and completed his residency in clinical child psychology at Oregon Health and Sciences University in Portland, Oregon. Eric commits much of his time and energy outside the classroom to researching the topics of child psychopathology, child and family assessment, child psychotherapy and child development. Particularly interested in attention-deficit disorder and conduct problems and in families in which children have been physically abused, Eric has contributed and published many journal articles and books on these topics. He is also a Fellow of the American and Canadian Psychological Associations and has served on the editorial boards of many prestigious journals and grant agencies at local and federal levels.

David Wolfe is the first recipient of the RBC Investments Chair in Developmental Psychopathology and Children's Mental Health at the Centre for Addiction and Mental Health, University of Toronto, and the Academic Director of the Center for Research on Violence Against Women and Children. He enjoys teaching child psychopathology, child assessment and psychotherapy and community psychology to undergraduate students. He earned his Ph.D. at the University of South Florida in Tampa and completed his residency in clinical psychology at the University of Mississippi Medical Center. David is a founding member of the Center for Research on Violence Against Women and Children and a fellow of the American Psychological Association (APA), where he served as president of Division 37: Child, Youth, and Family Services. He lends special focus to child abuse, domestic violence and development and developmental psychopathology, as well as the impact of early childhood trauma on later development in childhood, adolescence and early adulthood. Currently, David focuses on studying ways to prevent violence in relationships with adolescents.

Katherine Nguyen Williams, Ph.D. is a clinical professor of psychiatry at the University of California, San Diego (UCSD) and Director of Strategic Development and Clinical Innovations at Rady Children's Hospital - San Diego, Department of Outpatient Psychiatry (RCHOP). She is a licensed child and adolescent psychologist specializing in assessment and evidence-based treatments for child and adolescent mental disorders. She is the training director for the RCHOP child rotation for the APA-accredited UCSD/VA Internship and SDSU/UCSD Joint Doctoral Program practicum training programs. She earned her Ph.D. at Loma Linda University, completed her residency in clinical child psychology at the University of California, San Diego, and obtained her post-doctoral fellowship at the Child and Adolescent Services Research Center. Dr. Nguyen Williams founded the Center for Child and Adolescent Testing and a pediatric anxiety/OCD program and autism assessment center serving children from low-income and diverse backgrounds. In addition to providing clinical supervision to psychology doctoral students, she maintains an active clinical practice as a bilingual/bicultural clinician for children, adolescents and families. Dr. Nguyen Williams is a faculty recipient of the Champion of Diversity Award and cotrainer for the Unconscious Bias training team at UCSD. She is the author of the Psychology Today column "The Modern Child" and podcast host of Ask Dr. Kat. She is also featured in You Know the Drill, an award-winning documentary short film selected for the PBS Short Film Festival about the role of active school shooter drills in pediatric anxiety and trauma. She has published in peer-reviewed journals and is the primary coauthor of the cognitive-behavioral treatment manual, MODULAR CBT for CHILDREN and ADOLESCENTS with DEPRESSION: A CLINICIAN'S GUIDE to INDIVIDUALIZED Treatment.