, in the NVR he can't go back. It really is a rapid fire paper.
With the VR he can go back. There is a school of thought that, should a dc be running out of time then they should tick (for instance) all answers as being 'a' or 'b' (or c or d etc) as percentage wise (depending on how many questions are left of course) you're bound to get 3/4 right. THEN if time permits, he can go back.
The Skipton tests are the same tests as Ripon (but different pass mark!). From memory the NVR is 80 questions in four sections of 20 questions, each section is 10 minutes long and no going back once a section is completed. But I could be wrong, it's almost 2 years (eek) since my dd did hers.
The VR I really can't remember
, something like 125 questions, but Herman will be along shortly and put me right. If not I'll ask dd if she remembers when she gets in tonight. You can always ring the LEA in Harrogate, they're very helpful.
The top score you can get is 280 but as for standardisation, well, I think you need a degree to understand it, but rest assured your dd will be awarded the extra marks due to her age.