Professor Jaap Scheerens—University of Twente, the Netherlands
This research was supported through a grant by the International Baccalaureate Organization. The purpose of this research is to collect and synthesize information, including external expert opinion, policy documents and scholarly work, which discuss theories and practices related to school effectiveness. The views expressed in this paper are those of the author and cited work and do not necessarily represent or reflect the views of the International Baccalaureate Organization.