The Flint Effect

The flint effect is the rise of icus across the world that occurred over the twentieth century. Scores on icutess shifted to the right to higher in every country and every part of the curve, just as if you lifted up the scores and shifted them over. It proceeded at a rate of about three points on icutes per decade. And it was most pronounced, interestingly, on the types of tests where change was least expected,. Those that were designed to be culturally reduced, meaning they shouldn't be effected.