Gifted Issues Discussion homepage Forums Identification, Testing & Assessment Longitudinal Studies from WPPSI onward

Just curious - has anyone had any sort of experience with the WAIS-IV?

For example, has your gifted child been tested, and retested as he/she grew older? If so, were the results between tests statiscally reliable?

Using Wechsler Scales as an example:

WPPSI-----FSIQ 99th %le age 6
WISC-III--FSIQ 70th %le age 7
WAIS-III--FSIQ 91st %le age 17
WAIS-IV---FSIQ ???Soon to be determined??? age 20

Are the results statistically reliable between tests within the same scale "Wechsler" assuming the testing conditions and level of motivation and all which affects the score were the same during each test?

Same person - MENSA HOME TEST 99th %le (age 18)
--------------SHIPLEY INT LVG 70th %le (age 20)

Some may remember my previous posts, sorry for the redundancy, but again, what do you make of the differences between tests?

I don't have that long term of data, but without outing myself too much, I have some scores of my own from years back.

I took the WAIS-R (version 2) at age 17 with a FSIQ above the 99th percentile, but not at the 99.9th. I had a grad student administer the WAIS-III to me a few years back to get practice administering the test. I'm just hoping that he wasn't too good and not that I've gotten less intelligent over the years - lol! My numbers came out just at the bottom of the 98th percentile.

I am a member of Mensa and have scores that qualify me for some higher IQ societies, but again not things like Prometheus or the Triple Nine Society, or whatever those really high up ones with few members are!