UMS and raw marks - how is it calculated?

Here is a UMS Marks converter.

Hope that helps

I got 124/140 UMS in a January exam. I've had a look at the exam script I requested back and I achieved 56/70 marks. I assume to get the UMS mark, the raw mark is simply doubled.

I don't quite understand this. Surely it should be 112/140 then? Where did these extra marks come from?

It's different for every paper.

Say the raw mark for a paper is 70 and UMS is 100.

If the grade boundaries are low so that 35=A then they'll give you the number of UMS you need for an a which is fixed.(A*=90, A=80,B=70) etc.

So in that case the UMS will be 80

If the boundaries are high for the paper so that 65 /70 is an a then the UMS will still be 80.

In your paper you needed less than 57 for an A so they gave you a UMS mark over 80% which is an A

Thank you everyone.

I've been trying to verify my UMS score using my raw mark myself using the method in the TSR wiki. But it's not really working, it's working out completely differently to the reality.

I got an A in a paper, I think that's where I'm going wrong because there is no grade boundary above A. Can anybody help?

Thanks

http://web.aqa.org.uk/UMS/index.php?id=04

I dont understand your question but just look at their graph, it clarifys lots of stuff.

Thanks. Is there one of these for Edexcel?

Basically, I've got my raw marks after having received my exam script back. I'm just trying to find out how exactly they got my UMS score from these raw marks.

The method shown on the TSR wiki isn't working for me, probably I got an A grade, so working out UMS becomes more difficult (same if a candidate gets a U grade). Do you know how the conversion formula from raw to UMS marks should work?