David has earned a bachelor’s degree. in psychology and a master’s degree in child development from Washington State University, as well as a Ph.D. in psychology from Saybrook University. His training includes the study of parenting, behavioral health and brain disorders (including ADHD), substance use and abuse, motivation, managing emotions and managing thoughts, as well as how to change behaviors. He has over 40 years of experience in working with individuals, couples, and families in their homes and other locations in the “natural environment”.    David has co-authored over 30 academic papers and three books focused on research & evaluation, training, counseling practice and advising on public policy.