FWIW, my dd took the WISC IV twice with her IQ scores varying by more than 20 pts btwn the two administrations. Both times she came out gifted, but the first time bordering on PG and the second time just barely at MG. She also took the SB5 at the same time as the second administration of the WISC (one yr post the first admin) and came out bright (like 1 SD above the mean), but not gifted. The test administrator said that she had some very odd and divergent answers on the SB that hurt her score a lot dropping one section into the 16th percentile. On the WISC IV, the first time around her scores varied from around the 50th percentile (I don't have the results here, so I don't recall exact #s) to the 99th percentile. The second time they ranged from the 25th to the 99.9th w/in subtests.
We also had the WIAT (achievement) administered b/c that is supposed to help diagnose LDS and her scores on that and another reading achievement test were in the 98th-99th percentile on math, reading, and writing, so there is no LD according to the psych who tested her.
For the most part, we are happy with the psych and with the ruling out of LDs, but it still doesn't answer questions for us on erratic scoring and I take some exception with the note that the psych put in the report that dd is less able than her sister whose WISC score is a few points above the second administration of dd#2's WISC and that she shouldn't get any special services in school that make her stand out b/c she is self-conscious about being different.
This is, of course, just one anecdotal story, but I don't know if the SB5 is going to tell you whether your dd has LDs or give you the answer. At least for us, it left as many questions as it answered.
eta: dd also took the RIAS ability test during this same second testing process and the score for that one was not able to be calculated due to wide discrepancies btwn subtests.
Last edited by Cricket2; 06/17/09 01:42 PM.
