Cola, one thing you can look for on the CogAT - was it timed? And did any of the subtests require use of handwriting to give a response, and if so, did those subtest scores look lower than the subtest sores which required a different type of response (oral or computer).
Another thing you an do - non-scientific but gives you a bit of info - have our ds write out the alphabet (upper and lower case) and time him. Then calculate letters per minute to get a handwriting rate and google "letters per minute + grade _(ds' grade)_". If your ds' handwriting speed is lower than grade level, that's one potential concern. The other thing to look for in the handwriting sample is how he forms his letters - watch while he's writing - does he form them the way he's been taught in school? If he's starting them at different places each time, or overall just not starting at the top (when he's been instructed), that could indicate he hasn't retained memory of how to form letters. See if he skips any letters. How messy is his writing? How big? Does he have awkward spacing that changes all the time? Does he run off the paper while writing? Does he sit with odd posture, hold his pencil in an odd manner? Does he hold his arm as if i hurts when he writes.
polarbear