According to Division 16 (Division of School Psychology), of the American Psychological Association (APA) school psychologist operate according to a scientific framework. They work to promote effectiveness and efficiency in the field. School psychologist conduct psychological assessments, take interventions, and develop or help develop prevention programs. Additionally, they evaluate services with special focus on developmental processes of children within the school system, and other systems, like families. School psychologists consult with teachers, parents, and school personnel about learning and behavioral problems. They may teach lessons on parenting skills (like school social workers), learning strategies, and other skills related to school health. In addition, they often have to explain test results to parents and students. They also may do some counseling (State Board of Education 2003; National Clearinghouse, [school psychologist], n.d.).