There's such ignorance on this thread and it really worries me. No one is saying that SATs themselves are absolutely a bad idea; it's the fact that the literacy part especially is just absolute patent nonsense, especially with the recent changes. Worse than a Victorian grammar test and about as useful.
I follow a couple of well known authors on social media and Michael Rosen in particular is condemning these tests in the strongest possible terms. Lots of authors and editors have commented that they only got 30-40% on the sample tests, in spite of making their living from words. How ridiculous is that? The questions are utterly meaningless. Being able to identify abstract grammar parts is not the same as being able to use language correctly. It's a 'yes-no' answer mind-set.
It's a joke. It's teaching our children irrelevant nonsense in order to tick boxes and gather data and the preparation that goes into it strips away more and more time from other aspects of learning. All this to try and emulate some kind of Chinese / Korean slave learning mentality, when all the research from Scandinavia says the opposite - teach children through play, encourage them to be creative and ask questions, encourage them to be happy.
All endless data does is keep pen pushers in jobs - local government, Ofsted and various inspectorates. Data is not god, it's just numbers and letters divorced from the reality of the children sitting the tests. It strips the joy from the classroom for teachers and pupils alike. More importantly, it takes so much time that it stops teachers teaching children the important stuff - how to think critically, recognise and call out bullshit when it's steaming beneath their nose. I wonder why that suits a government intent on keeping the little people little...