The Center for Self-Determination Theory (CSDT) is a nonprofit educational and scientific organization based in Celebration, FL. Our mission is to advance Self-Determination Theory by supporting and disseminating in-depth research and the theory's philosophy and practices. Did you know? Self-Determination Theory (SDT) is a leading scientific theory of motivation worldwide. With over tens of thousands of published research studies and papers using SDT, it is the most well-validated behavioral science model in the world, with decades of applied experience in health care (including disease management, medication adherence, and lifestyle health), education (with numerous school interventions), the workplace and organizations, psychotherapy, sports, and the virtual world. Join us: Like us on Facebook at www.facebook.com/selfdeterminationtheory/