This thesis proposal investigates principal leadership in Hong Kong Christian secondary schools after the turnover of Hong Kong to China in July 1997. Principal and teacher perceptions will be used to describe three aspects of leadership: the leadership role of the principal; the changes, if any, to that role due to the turnover; and the degree of agreement between principals' and teachers' perceptions about principal leadership. The definition of principal leadership will be generated by 24 principals and teachers from eight Christian secondary schools. A collection of thematic statements will be derived from interviews with one principal and two teachers from each school. These commentaries on the leadership role of principals will form an aggregate description of the leadership role of the principal, if there is a match or mismatch between principals' and staff views within one school, and if there are any commonalities or differences across schools. The document includes a review of literature on transformational and transactional leadership, instructional leadership, leadership styles, Christian leadership, leadership dimensions, change process, and professional development. (Contains 59 references.) (DFR)