As part of the number-crunching I did for to that story, I can also provide an update from our measure on social mobility in schools – how much does poverty damage your school results? It’s not good news, alas.
Last year, we reported that our educational mobility index had been rising for five consecutive years – from 2006-10. Unfortunately, this year, things deteriorated a little. That blip upwards in 2010-11 means poverty exerted a bigger influence on the school results of children in 2010-11 than it had in 2009-10.
As a reminder, for those of you who have not committed these things to memory: we measure this through quite a simple metric. First, we draw our old friend, the Graph of Doom, which shows how exam results interact with poverty:
To come up with this graph, we divide the country into hundredths, by their neighbourhood deprivation. Then we plot each grouping’s average score on the line, according to a simple performance measure (which I’ve tweaked since we last did this).