The Leadership Practices Inventory (LPI) is a 360 degree Leadership assessment instrument created by James M. Kouzes and Barry Z. Posner. It can be purchased and completed online by following the link provided.
The LPI is a questionnaire with thirty behavioral statements—six for each of The Five Practices—that takes 10 to 20 minutes to complete. Leaders complete the LPI-Self, rating themselves on the frequency with which they think they engage in each of the thirty behaviors. Five to ten other people—typically selected by the leaders—complete the LPI-Observer questionnaire, rating the leaders on the frequency with which they think they engage in each behavior. Respondents can indicate their relationship to the leader—manager, co-worker or peer, direct report, or other observer—but, with the exception of the leader's manager, all the observers' feedback is anonymous.