It took a lot of charts for me to understand that you can't compare old IQ to new IQ numbers! I have my testing results as a child when I was admitted into a special program for early college entrance (goal was high school done by 14). And I have my son's IQ scores which are 30 points lower... or so I thought. Yet I have my parents saying repeatedly "oh you're in so much trouble, he's so much faster and more logical than you were at that age!"

Basically, you just have to realize you're comparing apples and pumpkins. Totally unrelated to eachother but they both make nice bread :-)