My daughter relayed specific questions from the WISC that I know, for a fact, she knew the answers to because she happened to be in the room, (or the car) while I was listening to NPR. That has nothing to do with innate intelligence. A child of a housekeeper (I know many of them personally due to my husband's line of work) who is working 12 hr. days to put food on the table is probably not choosing to listen to NPR while his mother is at work.