In many countries, policy makers struggle with the development of value-added indicators of school performance for educational accountability purposes and in particular with the choice whether school context measured in the form of student composition variables should be included. This study investigates differences between 7 empirical studies…

The need for education to help every child rather than focus on average attainment has become a more central part of the policy agenda in the US and the UK. Remedial programmes are often difficult to evaluate because participation is usually based on pupil characteristics that are largely unobservable to the analyst. In this paper we evaluate…