I was thinking about the WISC and wondering how it works if older kids are given the test, since it goes up through age 16. My DD who had just turned 8 when she took it got 18's-19's on a few of the sections--for instance Matrix Reasoning she apparently ran out of questions and answered two questions wrong. So wouldn't it be extremely easy for a bright 16 year old to hit ceilings on subtests if a 7 or 8 year old can do that?