I would love to offer my DS8 to test that theory but curiosity does not out weigh the cost factor. I wonder if my son would test higher now- he was tested at age 6 with the WISC-IV and his PR was considerably higher than the VC. 145/ 126

He hated school so we skipped him that year from 1st-2nd. He really flourishes with challenge and exposure- he can test at a high level in reading but his talent lies in music and math. It has been amazing to watch him learn the piano this year- he plays at the level of 6+ years after 1 year of lessons. With the grade skip and increased mental challenges of the last two years, I wonder if all the exposure would shift his VC?

It's an interesting idea- I remember the testing psychologist mention "crystallized intelligence" vs. "fluid intelligence."