Welcome mountainmom,
There are two different Woodcock Johnson tests - the WJ-III Test of Cognitive Abilities is an IQ test. It's used in our school district for IEP eligibility evaluations; our ds12 has had the WISC when tested privately and the WJ-III Cog Abs when tested for IEP eligibility for LD at school. Our school district psych told us that the district chose to switch to the WJ-III because they feel it gives more detailed info plus it's directly tied to the WJ-III Achievement Test battery which they also use. According to the pscyh it also does not have the same ceiling issues for gifted kids that the WISC-IV does. I'm not an expert on testing, so I may not have explained that correctly, I'm going from memory re what the school pscyh told us. I feel like I am much more familiar with the WISC-IV since we had that testing through a neuropsychologist eval and were given a ton of info and input from the neuropsych re our ds' results, plus there is so much more info online in forums like these about WISC results. OTOH, I felt like we had more definitive info from the WJ-III re our ds' particular area of challenge, and our ds did score higher on the WJ-III in the areas he hit the ceiling on the WISC. When the WJ-III Cog and Achievement tests are administered together, there is a way that the scores are combined to give a child's predicted vs actual achievement which was also helpful in defining ds' area of challenge. When ds had his neuropsych eval comparing WISC-IV ability testing vs WJ-III achievement testing, you can see the same patterns of asynchronous achievement but they took a bit more analyzing and charting to really get the full picture out of it.
What kind of learning disability do you suspect?
polarbear
ps - also meant to mention, my knowledge of the WJ-III Cog Abilities test is also somewhat limited simply because that testing was through our school, and our school didn't give us anywhere near the type of analysis ds' neuropsych did, and we weren't able to ask the same type of detailed questions of the school (well, we could ask but the school had no answers they were willing to share!). You'll probably be able to ask as many questions as you can think of with the Children's Hospital eval as well as get much more info on the test results
