Hi there,
I got an answer to my question from another source. In case anyone was courious, yes, you can use individual domains of the Pediatric Evaluation of Discability Inventory. We'll have to try it out before we know for sure if it is what we are looking for.
I'm still searching for a usefull assessment tool for intelectual disability, so I would appreciate any tips... I might put a post on that topic later...
Thanks for your interest,
Eva