Hi, this is a question for Dottie about the specifics of the tests and scoring.
(It's so great to have a place where you can ask obsessive questions about these tests...)
Based on you post from several days ago, I went back and checked my son's scores, and sure enough, he did much better on Arithmetic (scaled score 16) than on Letter-Number sequencing (scaled score 11)-- but the Arithmetic is a supplemental test and was not used in the WMI score.
So the test, as scored, was Digit Span 16 an Letter-Number Sequencing 11, which yielded a WMI of 120.
My question is, can you easily calculate what the WMI would be if they used the Arithment score of 16 instead? And how that would affect the FSIQ?
Also, under what circumstances do they use the supplemental tests? Now that I am looking at his results, I see that he also maxed out (19) on the two supplemental Verbal tests (Information and Word Reasoning), and got 19 on Similarities and Vocabulary too, though he got only got 16 on Comprehension, which was used to calculate the VCI.
