Here is a quote from the manual:
The practitioner may wish to consider using the GAI in a
number of clinical situations, not limited to, but including the
following:
• a significant and unusual discrepancy exists between VCI
and WMI;
• a significant and unusual discrepancy exists between PRI
and PSI;
• a significant and unusual discrepancy exists between WMI
and PSI; or
• significant and unusual intersubtest scatter exists within
WMI and/or PSI.
I also have read that gifted kids often find the memory tests without real function and therefore do not perform as well on them as would be expected. That happened for my kiddo. She memorizes really easy and yet her scores did not reflect that. The more complicated of the two scores was much higher than the easy one.
