What Do They Teach People These days?
Posted in Critical Thinking, Education on September 16th, 2011 No Comments »
An article on BBC news today informs us how we should all embrace a new test of phonics for children at age 6 as part of ensuring all children learn the phonics system systematically and early. This post is not a comment on phonics though, but rather on the terrible state of education amongst… our education ministry.
Schools Minister Nick Gibb said: “There is no doubt we need to raise standards of reading. Only last month we learnt that one in 10 boys aged 11 can read no better than a seven-year-old.
So the scandal here is that 1 in 10 boys reads well below the average seven year old. Indeed Nick Gibb is not clear whether he means the average 7 year old or one very special 7 year old, but I suspect if the latter, the numbers would be much higher than 1 in 10.
What is wrong with this statement though?
In brief: “There is no doubt we need to raise standards of reading” does not follow from the statistic we are given. Indeed, it should be entirely unsurprising that a significant proportion of boys lag their peers by this amount.
The reason for this is that in the population of all 11 year olds, there will, as in so many things, be a distribution of reading ages. That distribution ought to follow the bell shaped curve of a normal distribution, with the mean reading age being at the 11 year old mean, but notably with 10% of boys lying a little over 1 “normal distribution” from the mean (see graphic).
So what is wrong with this picture?
Well if you raise reading standards for all and by the same amount for all then all you do is move the means! In particular if all children get better at reading then the average 7 year old after the intervention may now read as an average 8 or 9 year old. The average 11 year old may also improve to the level of the average 12 or 13 year old (although as most improvement comes early, it may be that the means now are closer together). If the spread of results remains unchanged, because you improve results for all, then you would expect that you would still have 1 in 10 boys reading at the ability of the average 7 year old.
To be clear, you would not expect ANY improvement in that statistic. Indeed you might in fact expect it to worsen, as you expect the means to move closer together!
In other words, a worsening trend on that statistic could be a sign of success!
Of course, the tests can be standardised. You could call the average 7 year old attainment now as “level 7″ and not move the average ad standards improve. Then you could judge success of improvement against the level 7 baseline as well as a level 11 baseline. But that is not what the minister said, and it is not clear he understood why what he said was wrong. And this is from the education Minister!
Going wth the raw averages, the best ways to ensure no significant numbers of boys read at the mean 7 year old level, and thus achieve your education targets are:
1. Separate the means. Improvement is hard, but we can hold back 7 year olds instead. If we do not teach them to read at all until they are 7, then their mean reading age will drop, but their rapid progress thereafter should ensure that no 11 year olds read at the level of the average 7 year old.
2. Reduce the spread. That is, concentrate on the poorer readers and hold back the better ones and try to homogenise the group. One would hesitate to suggest this may be a reason why me might insist every child be forced to learn through phonics!