Very little of the above is interpretable due to the huge scatter. For example, even within VCI, she has a 7 point spread.
At what point is VCI uninterpretable? I'm asking for my own edification here, since DS7 has a 10 pt spread in that set of subtests (15, 17, 7). I've been feeling like that made VCI not very useful or informative for us but would like to know if there is an official point at which it shouldn't be used.
Our oldest dd had an 11 point spread in the PRI index (8-19+). I can't recall the third # in that index, but it was in the upper teens. We weren't told that there was a point at which you couldn't calculate the index score due to scatter although we were told that there was a point at which you shouldn't calculate the FSIQ score due to subtest scatter (which she also met). I would, of course, be less confident in the subtest score itself as an accurate indicator of the child's abilities with a large spread like that, though.
eta: our dd does not have a LD, but she is either typically sensory overresponsive due to being gifted or has SPD depending on whose dx you take. She hasn't been retested since age 7, when she got these wildly variable scores, but I think that anxiety may have played somewhat into the large spread. It seems that some psychs consider large spreads in and of themselves to potentially indicate LDs and others do not. We were assured by a psych that dd#2 didn't have a LD despite wild variations within indices on IQ tests b/c her achievement scores weren't below the predicted values based upon the IQ scores. It's confusing, isn't it!?
