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My child had a WISC test earlier this year.

Results

<Deleted some test result detail.>

I received the raw scores and scaled scores for all subtests.

Of these 12 subtests, my child reached the ceiling 3 times (similarities, arithmetic, figure weights) and had a scaled score of 19. However, I know that the extended norms would not apply as the score wasn't high enough for that).

I would like to understand my child's score better and want to know more about the QRI which seems to be my child's strongest side. Can anyone point me in the right direction.

BG, your child did very well on all of the measures! I should note, though, that the WISC-IV has been superseded by the -V for three years, so these scores should be interpreted with a bit of caution. Also, there are no extended norms as of yet for the WISC-V, so the very high scores on the subtests of the QRI are as much normative information as we can obtain at this time, regardless of raw score.

The QRI (Quantitative Reasoning Index) is a measure of cognitive skills related to mathematical thinking and problem solving, and, in this case, suggests that your child would be expected to be exceptionally strong in mathematics development.

The combination of a 19 on similarities and the VCI you've reported suggests that skills in verbal knowledge may be somewhat lower than verbal reasoning. Does any IRL data bear this out?

Thank you aeh.

My child is very good at maths. However, my child's strongest interest and ability are science/physics. I find it hard keeping him challenged in this area.

In my opinion my child has excellent verbal reasoning skills. However I'm not sure how verbal knowledge is measured. If verbal knowlegde would be vocabulary-like, I think my child would be a bit above average.

Thank you for you feedback.

Of course, that makes sense. That is true; Pearson did need to make some small modifications, but mostly local norms had to be obtained, which is why the UK and AUS/NZ versions were released later than the USA and Canada editions.

Yes, verbal knowledge is heavily influenced by vocabulary, which is what is measured by the other VCI subtests (other than similarities, which is a measure of verbal reasoning, and particular strength for your child). Sounds like your IRL observations are consistent with presumed test scores.

Strong math skills are essential to success in science, and especially physics, so their appears to be a good match between interest and aptitude.