Gifted Issues Discussion homepage Forums Identification, Testing & Assessment WPPSI III How often is it inaccurate? dd is 4 1/2

My DS has been tested twice, once on the WPPSI-III at 4.5 and once on the WISC-IV at 6.5. His scores were within 2 points of each other, and both were in the 99.9%ile. In his case, I think the scores are accurate and seem fairly stable.