If you recall from our discussion a few years back, there were a lot of question marks then about what within-child attributes actually contributed to her performance. So the rise in processing speed is not necessarily that mysterious, especially given her age and testing behavior at the time.
On the decline in index scores, while not something I would dismiss out of hand, it may have some reasonable explanations. Firstly, this isn't the same test, and it has a different structure (despite the intentional similarity in labels). You point out two index scores that appear lower than expected.
1. We'll take the easier one first. Working memory was not assessed at all on the WPPSI-III, so this is a new domain altogether, with no possible indication of change.
2. Fluid reasoning's closest analog on the WPPSI is indeed the PIQ. However, the actual overlap in tasks between the PIQ and the FRI consists of a single untimed task. One of the other tasks now resides in the VSI (which you did not report on). The third task is now a supplemental subtest, and contributes only to ancillary index scores, which aren't typically obtained. not in the version of the test current in your country.
We didn't discuss her subtest scores back a few years, so I don't know if the change in scores in question is actually as great a change at the level of the individual tasks (rather, the one individual task). I'll also note that one of the subtests that was on the PIQ and is now in the VSI is timed, with bonus points for speed, so if your DD turned on the jets for that task (especially at the level she currently demonstrates), the high score on the PIQ could have been partly or mostly explained by that subtest.
If you have access to the subtests from past and present testing, we might be able to tease out some other possible hypotheses.
As far as the suspicion of ADHD goes, it might be worth thinking about what happens if you are a young person who acts quickly, at a pace, or after intervals, that in other people might constitute impulsivity, but in your case, are just because that's your natural speed. And if, perhaps, you also have some perceptual-motor strengths, which naturally incline you to engage in more motor activity, and possibly to have a more nonlinear problem-solving style.
BTW, did you see any change on the VCI vs VIQ? After nearly three years of instruction, you might expect a slightly more accurate representation of verbal cognition in the second language.
Last edited by aeh; 12/19/20 11:45 AM. Reason: looked up reference
