Originally Posted by Bostonian
Originally Posted by aculady
With a 2E kid myself, how I look at this is that the high number is real - it shows the minimum that your kiddo can do on a good day when everything lines up for them - real ability might even be higher.

Even if a child is in equally good test-taking form for each test, there are random errors in test scores, which argues for averaging the scores, unless you have strong reason to believe that one set of scores is unrepresentative.

I'm not talking about little variations that fall within the 90% confidence interval of the standard error. I, and the OP, are talking about really wild swings. If your child has a known disability that impacts testing performance, you have reason to believe that all of the scores might be unrepresentative of their knowledge, honestly.