Thanks Dottie, I'll try and give you the info. He's nearly 4 and a half. We're not in the US so I don't think we can use DYS. He'd be due to start school at the end of this year but the suggestion was that we look at starting sooner, which I'm not sure about. The WIAT scores have age equivalents but not grades? They are Word Reading 9:0, Reading Comprehension 11:8, Pseudoword Decoding 14:0, Numerical Operations 7:8, Maths Reasoning 8:8, Spelling 7:0 and Listening Comprehension 10:0. Only three of them have a score with 3 digit numbers (the others are blank) all three are 160 (that column is headed STD). That's for the word reading, Maths reasoning and Listening comprehension.
I'd love to hear about some of those options - as far as I see it our options are start school early now, start when he turns 5 (end of the year) - in either of those cases I guess we have to think about what level he starts, or not start him at all and keep him home for at least a while.