A review of research evidence suggests that low levels of educational attainment are crucial in generating and sustaining social exclusion. Test scores at school are the most effective predictor of many adult outcomes. School attendance and soft skills are also important. Reviewing the factors...

Critics of international student comparisons argue that results may be influenced by differences in the extent to which countries adequately sample their entire student populations. In this research note, we show that larger exclusion and non-response rates are related to better country average...