Society's perception seems to have changed to think that stay-at-home mums aren't clever, because they don't have a paying job.
I know some men out there who had no idea how to change a baby's nappy, or heat up a bottle properly let alone operate a washing machine. It takes some skill to look after a baby, let me tell you!
The point is, that IQ isn't based on a sit down written test. Dr Thomas Armstrong back in 1983 came up with this theory of different intelligences:-
I totally fail at the Logical-mathematical intelligence and the Interpersonal intelligence, but I'm not bad at most of the other ones (well, maybe Bodily-Kinesthetic intelligence leaves a little to be desired... that might involved sport, but I was great at ballet!)
We need to teach our children that there are lots of different things you can be good at, and we need to start by recognising what we are good at. If our personal self esteem is good, we will raise happy, confident children.
You can read a bit more of his article here: http://www.thomasarmstrong.com/multiple_intelligences.php