The purpose of this research was to compare the influence of management styles of head teacher's on pupils' performance in private and public primary schools in Nakuru municipality at Kenya Certificate of Primary Education (K.C.P.E.) level. The study findings revealed that most public primary schools were using democratic and participatory leadership styles as opposed to private primary schools, which were mainly using the autocratic leadership style. Private primary schools were performing better than Public primary schools in K.C.P.E. Most teachers in both private and public primary schools...