More FOI Driving Test Rubbish

I’ve mentioned in various article recently about FOI requests, and how they are able to bring the average hack at local newspapers to orgasm in five seconds flat.

This one is quite amusing, because it is particularly inept in its attempts to interpret statistics. The headline trumpets that Blackburn is the hardest place in Lancashire to take your driving test. It then goes on to cite a pass rate of 47.7% compared to the average of 51.5% across the county (Lancashire).

That is statistical noise, and is meaningless. It’s even inside the 5% variance that the DSA uses to make sure its examiners are doing their jobs properly. But that doesn’t stop a driving instructor from saying:

Some other areas are definitely a lot easier, but I think it’s a very good thing to drive here. If you can drive in Blackburn you can drive anywhere.

Someone else who doesn’t realise that a 4% difference is meaningless, or that 47% and 51% do  not constitute “easy” and “hard”.

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