Aculady, here's something I've never understood. Even if the scores aren't 'significantly' lower, why shouldn't the GAI still apply? If seems to give the kid with the bigger gap, the higher IQ if only one of the kids has the gap. Lower scores in other areas will bring down everyone's scores, not just those with large gaps.

I guess I would agree that for the gap kid, the GAI is more accurate than the the FSIQ. But this GAI isn't more accurate than another kid's FSIQ, is it? I worry when scores get compared, and unfortunately they often do. One kid could miss a GT cut for their FSIQ while another makes it with the same GAI score, when the only difference is the latter child has lower memory/speed scores.