It makes no sense to me how she can have low processing speed and slow writing but reads so fast and fluently.
The processing speed subtests are calling on an entirely different combined set of skills than reading comprehension and fluency require. Depending on the subtest, processing speed is measuring how quickly a child can copy (coding requires fine motor and visual motor coordination, symbol search is more dependent on visual but also requires fine motor, both subtests are timed). Reading doesn't require any fine motor skill, and it's possible (especially when children are young) that acute vision isn't absolutely necessary either - some children read from context rather than word-for-word, so if they miss a word here or there they can still get the meaning of the passage from context.
blackcat, just my gut suspicion, but fwiw I'd suspect that your dd's slow handwriting is the issue that lowers her processing speed score. Slow handwriting doesn't necessarily have to be because of dysgraphia - there can be other causes, ranging from a desire to be neat to fine motor challenges. Has your dd ever had an OT eval for handwriting? It's possible that might give some insight into why it's slow for your dd.
polarbear
Yes, and her fine motor coordination when I took her for the OT assessment was something around 20th-30th percentile. She didn't do well on any of the tests that were timed, but was fine on the untimed ones. So the end result of her writing or copying patterns is fine, she just is slow. Her writing fluency on the WJ achievement was her lowest score, I think about the same (around 25th percentile). So her writing speed is slow but not really slow enough to diagnose a disability, unless one considers the enormous gap between that and all of her other scores, like reading and math and the WISC GAI. I tried taking her to a private psych for an eval and he said she appears to over-process information. For instance, when given a page of math problems she doesn't just start in on it, she examines the whole thing first. He thinks this tendency is why she has such a high PRI score on the WISC. She's one of the slowest kids in her class in terms of output and even the 20-30th percentile doesn't really explain that unless it's more like 5th percentile based on her grade (since she's the youngest and was accelerated).
I guess I'll have to just accept that it's a combination of ADHD, over-processing info, being a visual-spatial thinker, somewhat perfectionistic, and the somewhat poor fine motor skills (she is average or advanced with gross motor). But it's hard to write a 504 unless we have a real diagnosis.
