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Can anyone give me a GAI?
Go here to get the WISC-IV Technical Report #4 on GAI: WISC-IV Technical Reports.

I recommend reading this if you want to know what GAI means. All you have to do in this case is sum the six subtest scores that produce VCI and PRI, in your case 14+15+14+16+12+14=85. Then look in Table 1 to discover that is a GAI of 129 (97th percentile). No magic.

For those who want to figure out the effect of extended norms, take a look at TR#7 at the same location. Other reports explain more about WISC-IV and its theoretical foundations. The more I read, the less credence I put in any of the numbers outside the middle of the range.

Regards,
Jon