"Allowed" standardised marks..

[pippi]

I've read here a few times that the pass mark for the Bucks tests is around 87% - 72/80 ish depending on a child's age. Presumably this means that each child will have certain "allowed" standardised marks for each test? For example, they might be:
80,79 = 141
78 = 138
77 = 135
76 = 131
75 = 128
74 = 125
73 = 123
72 = 121
71 = 119
70 = 117....
(the missing 120 worries me in that list!).
Are there spikes in the "standardised" distribution of actual scores?

[bucks mum1]

I know in the 2007 test for September 2008 entry, 69/80 would have got a September baby a pass.

Somebody I know got their marks under 'freedom of information' and just got 121 with that score and a September birthday - although I know it can change from year to year.

I personally think 69/70 out of 80 is more realistic of what is required to get to the magical 121. I don't think it is likely to vary by much more than a mark from year to year, although I think it is best to aim for 90% (72/80) in practice to be safe.

[WP]

Are there spikes in the "standardised" distribution of actual scores?

There will be a similar table for each month of age, except set off a little, with the gaps in different places. When you put them all together it would tend to balance out giving a fairly smooth distribution.