That is a clear violation of professional best practice. The standard scores (IQ) obtained are marginally valid, and a likely low estimate, as the child was at the upper limit of the age norms. In addition, Pearson (the publisher) specifically advises that high-ability children should be given the WISC. Here is the advisement on six and seven year-olds from their website, emphasis mine (it references the WISC-IV, and not the WISC-V, as that was the version of the WISC current at the publication of the WPPSI-IV):
"For children suspected of below average cognitive ability, the WPPSI–IV should be administered due to its lower floor at this age range. ... For children of high ability, however, the WISC–IV should be considered due to its higher ceiling. For the average-ability child, the choice between the WPPSI–IV and the WISC–IV requires clinical judgment from the educational and/or psychological professional."
You do not have to wait a year for a retest, as it will be a different test. Yes, it is worth asking for a valid test administration. If they say they don't have a WISC-V (in the building, which is possible if this is a primary school), then ask them to find one elsewhere in the district. There is one somewhere.
Last edited by aeh; 05/19/16 08:56 AM.
