Cassie Yackley

Dr. Yackley is a New Hampshire based licensed psychologist with a strong passion for addressing young child trauma through evidence-based, trauma-informed intervention, and is CPP State Trainer. For more than 30 years her work has been devoted to intervening to interrupt the multigenerational transmission of violence and trauma across setting and through various roles.

Dr. Yackley served as the director of an APA-accredited internship program in psychology where she trained doctoral students from across the country in trauma-informed care with serious and persistent mental illness. As the Administrative Director of the Partners for Change project through the Dartmouth Trauma Interventions Research Center, Cassie collaborated with the NH DCYF to train child welfare and juvenile justice staff throughout the state in trauma screening and intervention while simultaneously preparing hundreds of mental health clinicians to provide evidence-based interventions to DCYF-involved children/families. Since that time, Dr. Yackley has consulted to hundreds of organizations and schools to assist their transformation to a trauma-informed system and has trained thousands of child- and family-serving professionals (mental health, education, child welfare, law enforcement, early childhood, hospitals, residential treatment centers, etc.) throughout New England in trauma-responsive interventions.

​Dr. Yackley is the Founder and Director of the Center for Trauma-Responsive Practice Change, a non-profit organization committed to assuring access to evidence-based/informed, trauma-responsive interventions for young children and their caregivers. She also founded and directs the NH CPP Provider Network which represents more than 140 mental health clinicians committed to providing effective CPP to young children through ongoing training and reflective consultation.