The Association for Contextual Behavioral Science (ACBS) is a worldwide nonprofit professional membership organization associated with acceptance and commitment therapy (ACT). The term "contextual behavioral science" refers to the application of functional contextualism to human behavior, including contextual forms of applied behavior analysis, cognitive behavior therapy, and evolution science. In the applied area Acceptance and Commitment Therapy is perhaps the best known wing of contextual behavioral science, and is an emphasis of ACBS, along with other types of contextual CBT, and efforts in education, organizational behavior, and other areas. ACT is considered an empirically validated treatment by the American Psychological Association, with the status of "Modest Research Support" in d