Well a gap between IQ and achievement can certainly be a sign of 2E and you may find yourself coming back to revisit this, but certainly I have a child with DYS IQ who was NOT at DYS achievement levels previously due to lack of exposure/opportunity and if she's not at DYS level now in at least literacy then she's close. She has ADHD and a major handwriting challenge that is primarily physical, but she's made astounding progress on that too. Certainly in her case I feel like she's got some quirks and needs scaffolding in some areas, but it's nothing like dealing with her sister's issues (who is VERY 2E). For her she really was held back primarily by lack of exposure/quality teaching at the appropriate pace and level.
