I don't believe that there is technically a GAI for the WPPSI. Someone might be able to give you an idea of what it would be if one could calculate it, though. Dottie?
I'd agree with Grinity that the scatter is not at all concerning. The psych dd10 has seen most recently seemed to indicate to me that an ideal gifted profile looks pretty much like that -- scaled scores mostly within a few points of one another. My dds both have much larger scatters (scaled scores from 8-19). For my younger one, she seems more held back by her lows than does her older sister.
