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Self-Determination Theory (SDT) is a theory of motivation. It is concerned with supporting our natural or intrinsic tendencies to behave in effective and healthy ways. SDT has been researched and practiced by a network of researchers around the world.

The theory was initially developed by Edward L. Deci and Richard M. Ryan, and has been elaborated and refined by scholars from many countries. Deci is currently a professor at the University of Rochester in the Department of Clinical and Social Sciences in Psychology in Rochester, NY; Ryan, a clinical psychologist, was recently appointed as Professor at the Institute for Positive Psychology and Education at the Australian Catholic University in Sydney, Australia.  Together and separately Deci and Ryan have promoted SDT through theory, research, and their ongoing training of scholars.

This website presents a brief overview of SDT and provides resources that address important issues such as human needs, values, intrinsic motivation, development, motivation across cultures, individual differences, and psychological well-being. Also addressed are the applications of Self-Determination Theory to:

  • Education
  • Healthcare
  • Relationships
  • Psychotherapy
  • Psychopathology
  • Organizations
  • Sports and Exercise
  • Goals
  • Health and Well-being
  • Environment

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Conference Survey: Your input is needed!

Conference Survey: Your input is needed!

June 8th 2015. Please help us out by completing this brief survey about your interest in the conference.   Connect with us on our Facebook event page....

 
The 6th International SDT Conference

The 6th International SDT Conference

The host hotel for the conference will be the beautiful Fairmont Empress, located on the Inner Harbor in Victoria, British Columbia.  The Fairmont Empress  is...

 
Huffington Post: Researchers Determine the Three Ways to Well-Being

Huffington Post: Researchers Determine the Three Ways to Well-Being

June 8th 2015. David Sze, Research Editor at the Huffington Post has featured self-determination theory in his latest article on the science of well-being. Sze...

 
New York Times: Lawyers With Lowest Pay Report More Happiness

New York Times: Lawyers With Lowest Pay Report More Happiness

May 13th 2015.The New York Times cites self-determination theory in their article, Lawyers with Lowest Pay Report More Happiness. “Law students are famous for...

 
New York Times Op-Ed: Love and Merit

New York Times Op-Ed: Love and Merit

April 25th 2015. In an op-ed for The New York Times,  columnist David Brooks references the work of SDT scholars Avi Assor, Guy Roth and Ed Deci in a post regarding...