History of TPI

The PANSS Institute’s unique mission is to support the continued development and use of the Positive and Negative Syndrome Scale to advance research and treatment of mental disorders and to promote behavioral health. Co-founded in 2003 by Dr. Lewis Opler and other authors and developers of the scale, the PANSS Institute (TPI) oversees training on the instrument and its derivatives.

In 2025, TPI achieved an important milestone, launching a free, online training program for the PANSS in multiple languages. Through partnership with Mapi Research Trust TPI successfully made the scale more accessible and practical for academic and non-profit use.