Pisa tests 15-year-olds on knowledge and skills for life. Reading literacy requires students to be able to decode words, but performance in Pisa is distinguished by how well students can interpret and reflect on written materials in performing real-life tasks.
We are asked how it is possible to test such general skills, rather than testing specific mastery of a curriculum and yet compare results of children across schools as a measure of differences in performance. I don't see the problem here. I want to know whether students educated at my local school are, for example, better communicators or more thoughtful intepreters of information than students from the school down the road. I want to know this, regardless of how well they perform in a specific part of the curriculum. As do employers.
Renewed interest in international testing can help us to view our education system in a wider context. But it is time to get behind the league tables and find out what these results are really telling us.
Independent policy consultant to the OECD,