My ds was tested 2 years ago, and received the following results:
VCI 126
PRI 145
WMI 116
PSI 126
FSIQ 138

He was recently tested again, and this is what we have now:
VCI 144
PRI 123
WMI 110
PSI 121
FSIQ 133 (although, they indicated that this number may not be valid because of the range)

My question is why the VCI and PRI would have changed so much. Nobody has given me an answer yet, so I keep asking. The psychologist said that it's not important because his FSIQ is still in the same percentile (99th).

What do you think?

He went way up in the Comprehension subtest, and down in every PSI subtest that counts (he went up a little in picture completion).