Originally Posted by aeh
CogAT: flip through a few CogAT threads here, and you'll see that many children with very high WISC scores perform markedly lower on the CogAT, so while some do well, quite a few do not.

Keep in mind also that the CogAT primary level is entirely pictorial (no reading or calculating), with a significant listening comprehension component, and not insubstantial social comprehension demands, on the verbal portion.

Do you normally see a big jump between Grade 2 Cogat and later years for hyperlexic kids, when Cogat goes from picture-based to reading-based? Do NT children stay on the same percentile (+/-error) between pictorial and word-based Cogat? I am not sure I understand this at all. Why do they use a picture-based test at all for 2nd graders? How does it predict any future academic performance? Is WISC-V verbal comprehension section pictorial? Are there any good reads on this?

Do you know in general, how does an above-grade test is scored for younger or older children? Do they norm 2nd grade ITBS separately on 1st graders, 2nd graders and 3rd graders? If the Cogat was actually end-of-the-year grade 2 Cogat but he just finished the 1st, how would they calculate his age score in this case? Do they have norms that go up and down a few years for each test?

Originally Posted by aeh
If you reference some of the hyperlexia links mentioned earlier, remember that deficits in listening comprehension are often paired with hyperlexic behaviors, so that reading is a more effective channel for accessing environmental input than listening is. Bing. Poor performance on the CogAT verbal, and high reading comprehension scores.

That's a very good point. So this is some sort of lingering receptive speech delay? He did have some at the time when he was diagnosed with PDD-NOS, but it was mild enough. His expressive speech delay was much greater - enough to qualify for services. At the same time it is generally said that hyperlexic kids have poor reading comprehension - they can read more than they can understand. If his listening issues are a part of his hyperlexia, then how does his 96%ile reading comprehension come into this? Is it still hyperlexia if his reading understanding is that good?

Why is his quantitative score that much lower than his math concepts etc?