DS seems to have had cognitive assessment (such as WISC). You don't need age equivalents, tribunals usually use standard scores, percentiles and the description. Extremely low means the same thing as 'profound' (0.3 and 0.6). Borderline, impaired, mild, moderate and severe are all clustered around the 1st to 2nd percentile and so the t-scores provide better detail of the severity of need.
They've been awful with us between them doing this with my little boy plus treating my daughter with spina bifida worse I've had enough I've already won two triburals with my daughter don't no how many more I can go to , I had a meeting with carlwyn jones first minister of Wales on 21st and he's looking into it all but he can't get a meeting with them in till 25th
btw, If a child has a percentile score of, say 5%, that means that 95% of children his/her age will have scored better, and 4% will have scored less iyswim or thereabouts.
What assessment was it?
(I would also send that letter in with a formal complaint tbh. It is outrageous that the EP isn't sharing with you that kind of information. What control freakery planet is she on? And she is 'punishing' you for going to tribunal as is your legal right to do so by withholding essential information, that might have affected whether or not you WENT to tribunal).
I do think the tribunal should know about this behaviour.
No we off to tribural Tuesday and psychologist said because we going there she wasn't exsplaining but I been told u can work what age he's at from reading all the scores so I'm trying to find out what age he is at all his scores seem to be low