The summary Sats results given to each primary school have been temporarily taken down from a government website after a reported error.

Schools were plunged into confusion this morning when they were given summary Sats results that did not match individual pupils results.

The results were published on the NCA (National Curriculum Assessment) Tools site.

Looks like there is a universal error with summary SATS results from NCA Tools: it’s not including pupils that weren’t entered for test. Best recalculate manually. https://t.co/UEySZC6CWa

— school data updates 🇺🇦 (@jpembroke) July 10, 2018

NCA tools summary sheets way out! Figures not matching at all

— Lauren Costello OBE FRSA (@L_Costello65) July 10, 2018

It appeared that pupils who were working below the level of the tests had not been included in the calculations - giving a higher overall score than expected.

Now the results have been removed.

Data expert James Pembroke described the situation as “chaos”.

Summary of chaos:
Overall school result on NCA tools didn't include pupils that didn't take the test. This is being corrected (all pupils except EAL discounted are included in % figs)
National RWM result is 64%
Here is 3 year summary for subjects pic.twitter.com/VgMzAE3g11

— school data updates 🇺🇦 (@jpembroke) July 10, 2018

And this morning’s data release has not impressed those at the sharp end.

Dear DfE/ NCA Tools.
Please get your calculations correct. It is stressful enough without additional errors to spot and correct this morning.
Thanks.
Every primary school in the country.

— Clare Fletcher (@cfletcherDoS) July 10, 2018

When we live in a system of high stakes testing the NCA tools need to get it right. For many HTs/ T a first look at the web site gave a result that was calculated incorrectly. No excuses this is not acceptable #SATSJOY

— Margaret Farrell (@MaggieFaz) July 10, 2018

The action this morning came after a previous blunder in which some heads were able to access their results early on Friday.

Headteachers were able to access their results from 7.30am today, the national results were published at 9.30am.

The national results revealed that 64 per cent of Year 6 pupils reached the expected standard in reading, writing and maths this year, up from 61 per cent last year.

Updated at 9.20am on 11 July 2018:

A Department for Education spokesperson said: “Due to an error with a calculation in the NCA tools system - which tells schools what proportion of their pupils achieved the expected standard at key stage 2 - this section of data was temporarily removed from the system and an updated version has now been reposted. This has had no effect on the published national Key Stage 2 results or individual pupils’ results.”