Originally Posted by Dottie
P.S...there ARE criteria that indicate an index is affected by scatter. I don't recall exactly where they fall, but it might be worth asking about. The spread of 4 for VCI doesn't seem terribly extreme, but the 5, albeit just one point higher for PRI seems more significant. A standard deviation in subtest scores is 3, and many times the criteria for scatter is 1.5 standard deviations, which would be 5 (4.5). Note the PRI to VCI meets this criteria as well (1.5 x 15 for an index score).

Most GT children I know have some degree of scatter, so take with a grain of salt, smile .
That's interesting. What does one do in terms of scores when you hit that scatter criteria? Both of my kids would be there for VCI and/or PRI. Does it just make one more cautious in interpreting the results or do you actually figure some alternative # similar to using a GAI over FSIQ for kids with scatter between indices?

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