blog 13.9.20What exactly does a percentile rank mean? Is the 50th percentile a “bad score?”  Does it mean that the student knew 50% of the material? Does a standard score of 100 mean he knew all the material?


blog 13.9.17My child’s WISC IV report has lots of other scores besides an IQ. What do they mean?   

In addition to a Full Scale IQ, the WISC IV also yields four “Composite” standard scores in the areas of verbal reasoning, perceptual reasoning, working memory, and processing speed.


blog 9.12.13Someone recommended that my child take the WISC! What is it and what will it tell me?