The testing is done by a psychologist and would include IQ testing. If his IQ is below 70 he would qualify. He could also examined for a MI but it would need to be fairly severe to qualify. A LD probably won’t do it. SS makes their own determination based on medical records. Testing is straight forward and are facts. You can’t like someone so diagnose them with a ID if that’s not the facts. Strict criteria is required and isn’t different between states. I based my comments on what Catherine said but for all I know he doesn’t have a disability.