BBC Headline from the website taken today:
Lagging pupils “don’t catch up”
This headline is lacking and, to be honest, the whole article is shocking. Headline problems are:
Quotation in Headline
No Shit Sherlock
Problematic Assumptions
Quotation in Headline
As long as someone wrote it or said it you can include it as a quotation in any headline or article. Say what you want. There’s always some nutter willing to give their opinion to give your leading headline some weight. “Crystal energies healed me” or “watch out for 23 December 2012! Those Mayans knew a thing or two”.
No Shit Sherlock
Pupils who are lagging behind in their work and understanding don’t then go on to catch up. Really! I need a whole BBC Headline to know this? How about “Some schools do really well!” or “Pupils getting better grades” or “Some schools not as good as others!”. There’s a distribution of schools or pupils, you can’t measure everyone and have everyone above average.
Problematic Assumptions
The biggest issue with the article and what the headline implies is that the bottom few pupils as measured by some arbitrary government test do not proceed to do well as measured by some other government arbitrary process. Have these people never heard of the Gaussian Distribution (the bell curve or normal distribution)? Some pupils will always be behind the others and will probably continue to be behind. Elsewhere in the article it is claimed that the top performers go on to get good grades later on. Holy Cow! This curve needs to be explained to them.
This is a graph of the Gaussian Distribution as everyone sees it:
The Gaussian Distribution as the government sees it (blue version):
No one is allowed to fail or fall behind or not be clever or be too far from the mean.