Publications

There is growing recognition among international organizations, scholars and policymakers that education systems must produce equitable outcomes, but there is far less consensus on what this means in practice. This paper analyses differences in inequality of outcome and inequality of opportunity in educational achievement among primary and secondary schoolchildren across 38 countries of the European Union (EU) and/or the Organisation for Economic Co-operation and Development (OECD). The analysis focuses on reading achievement, drawing on data from the Progress in International Reading Literacy Study (PIRLS) and the Programme for International Student Assessment (PISA). We use several measures to operationalize the two concepts of inequality in education. Our results show that inequality of outcome does not necessarily go hand in hand with inequality of opportunity. These two concepts lead to measures that produce very different country rankings. We argue that information on both inequality of outcome and inequality of opportunity is necessary for a better understanding of equity in children’s education.

Measuring inequality of learning outcomes in a way that provides meaningful benchmarks for national policy while retaining a focus on those students who are ‘hard to reach’ and ‘hard to teach’ is a challenging but vital task in the light of the global post-2015 education agenda. Drawing on PISA 2012 data and its earlier rounds, this paper explores alternative approaches to measuring educational inequality at the ‘bottom-end’ of educational distribution within the cross-national context. Its main aim is to understand how far behind children are allowed to fall in their academic achievement compared to what is considered a standard performance in their country. Under the framework of relative (measured as achievement gap between the median and 10th percentile) and absolute (measured by the percentage of students achieving at a given benchmark) educational disadvantage it examines cross-country rankings as well as national trajectories with reference to overall academic progress. We find that on average across OECD countries around 11% of 15- year-olds lacked skills in solving basic reading, mathematical, as well as science, tasks in 2012, but variation across countries was large.