Is it possible that what the school psych was trying to say is that the ADHD needs to be "treated" for the accommodations/remediations to be effective? "Treated" isn't really the word I'm looking for, so I"ll use another example. My 2e ds has an expressive language disorder and dysgraphia. If his SLP attempted to have him use handwriting to answer the questions she asked as part of his speech therapy to remediate the expressive language issues, he wouldn't make anywhere near as much progress as he can if he uses keyboarding to first eliminate the dysgraphia challenge.
I'm guessing your school psych was trying to say that your ds' challenges due to ADHD were making it difficult to fully benefit from the remediation or accommodations for his dyslexia - but again, that's just a guess.
FWIW, it wouldn't hurt to follow up by asking the school psych what was meant by the statement.
Best wishes,
polarbear
