This presentation summarizes Victor Vroom and Phillip Yetton's leader participation model. The model outlines five styles of leadership participation in decision making: autocratic I, autocratic II, consultative I, consultative II, and group. Autocratic I involves the leader making the decision alone using available information, while autocratic II involves consulting individuals before deciding. Consultative I involves consulting individuals and choosing a solution, and consultative II facilitating a group discussion where the leader's input may be weighted. The group style involves delegating the decision to the group with the leader facilitating discussion. The presentation provides an overview of these five styles and their characteristics.