My research interests include the implementation of education policy and program change, school improvement and teacher development (classroom, school, and school district levels), and program evaluation. My research and consulting experiences have been situated in Canada, the United States, Africa (Kenya, Tanzania, Uganda), Pakistan, and Chile. Current and recent research projects include a comparative study of school effectiveness in 22 high and low performing Ontario elementary schools; a study of school leadership in Chilean primary schools; an investigation of leadership practices affecting teaching and learning in the United States (9 states, 45 schools districts, 180 schools), a pan-Canadian study of policies affecting teachers work, case studies of school district efforts to develop teacher capacity to improve student learning in the United States, and evaluations of school and school district-wide school improvement projects in Pakistan and in Kenya.