My ds' school administered the WJ-Cognitive when ds was in 5th grade, and they told me that they used the WJ-Cog rather than the WISC-IV (this was around 6-7 years ago, therefore no WISC-V)... because WISC-IV scores tend to be a bit lower with more of a ceiling for elementary school students than the WJ-Cog. My ds' WJ-Cog GAI came out roughly the same value as his WISC-IV GIA, but his WISC-IV FSIQ was slightly lower due to 2e exceptionalities.
Did you receive subtest scores on your WISC-IV? Just curious what lowered the FSIQ, and if it's something that would have impacted the original achievement scores when your dd was first tested.
Best wishes,
polarbear
