This study investigates the impact of ethnic diversity on test scores, on top of the effect of the share of non-native pupils. We use a rich survey of Dutch primary school students and exploit variations between subsequent cohorts within the same school as our identification strategy. We find that ethnic diversity has a positive impact on the test…

An outline is given of the context in which The International School Effectiveness Research Project (ISERP) was designed and it is argued that the deficiencies of existing studies and the increased internationalization of education makes the more rigorous approach of ISERP essential. A number of methodological lessons from the study are given,…