And this
'In 2005, a report from the LSE claimed that British society had become less equal since the late 1950s. The researchers looked at two cohorts of boys, born in 1958 and 1970 respectively, and claimed that social mobility was more limited for those born in 1970 than for those born in 1958, in marked contrast to Germany, Canada and Scandinavia, where mobility across all income groups had increased.
Many commentators blamed this on the abolition of grammars. Nick Cohen wrote ?long live grammar schools? in The Observer, while Tim Luckhurst in The Times argued that ?only a blend of ideological zeal and intellectual dishonesty? could now defend the comprehensive system.
The report suggested that a key issue in social mobility was the decision whether to stay on at school or not at 16. So the crucial dates were not the years the past pupils were born but when they received their secondary education and when they decided to stay on after the fifth form. For the 1958 cohort, the year they turned 16 was 1974.
By then, more than 70 per cent of pupils were in comprehensive schools. The neat assumption that those born in 1958 would be educated within a selective system and those born in 1970 a comprehensive one is simply wrong. Both groups were highly likely to have attended comprehensives.
Those who use the report to attack comprehensive education also ignore the fact that the countries said to have the greatest social mobility, the Scandinavian nations and Canada, are all fully comprehensive.'
www.tes.co.uk/article.aspx?storycode=6028593