 Training for CPP is conducted through the Early Trauma Treatment Network, a division of the Substance Abuse and Mental Health Services Administration’s National Child Traumatic Stress Network (NCTSN).CPP training lasts 18 months.This is a parent education and psychotherapy intervention developed by Glen Cooper, Kent Hoffman, Robert Marvin, and Bert Powell designed to shift problematic or 'at risk' patterns of attachment – caregiving interactions to a more appropriate developmental pathway.