not sure if i should start a new thread, but wondering if anyone else has ever seen a FSIQ jump in the neighborhood of 30 points from WPPSI to WISC.. even though test conditions were near perfect both times.

The first time was at age 4.6 and we observed the whole WPPSI thru a two-way mirror and thought he performed great (for him). I believe his highest score on the WPPSI was a 10 and most were 7-8 range..His FSIQ was in the mid 80s which we were actually thrilled with because his score on the Bayley Scales at age 2 estimated his IQ at 50-60...

Then at age 7.0 he scored 30 points higher on the WISC-IV. with some subtest scores actually doubling or more..vocabulary and picture concepts were at ceiling on WISC (19 and 18)..Processing speed not great though..so FSIQ 119 and GAI 138.. Since his development has been so fluid during this time, definitely a late-blooming gifted child... wondering if anyone else has seen thsi with their kids and whether we should expect the trend to continue, putting him in a HG or PG range within the next couple years (joining his little sister who is HG+). He has a lot of HG characteristics and appears twice-exceptional now, but the disability piece seems to be vanishing before our eyes, with each day bringing amazement to us as we watch him change.

Also if anyone knows of any studies of changability of IQ scores, pls. let me know.. would love to read.

irene