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    Joined: Jul 2011
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    Can someone tell me what exactly makes up the verbal and performance scores for the WPPSI-III? According to what I have read, the full scale IQ is based on 3 verbal, 3 performance and 1 processing speed test. However I have also read that the full scale IQ is a composite of verbal and performance scores which makes it a composite of 14 different subtests. I'm confused.

    My daughter's test results show 3 verbal, 3 performance and 1 processing speed test. Does this constitute a full WPPSI-II IQ score? Are there other subtests that were done that I wasn't given results for? Should there be?

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    At your dd's age the verbal is composed by 3 subtests and the performance another 3. The core sub tests for verbal are information (which is optional in the WISC), vocabulary, and word reasoning. For perceptual/performance, those are block design, matrix reasoning, and picture concepts. I am going from memory here and do not have my dds' reports to verify this right now.

    In Morgan's case, for some reason the tester substituted picture completion for block design, do you have any idea why?

    Coding is the 7th score used to calculate the FSIQ.

    Morgan was given a full test, just with that substitution which is unusual, at least without an explanation. The question is whether the tester started it or not, when did s/he decide to use picture completion instead.

    Tester could also calculate the "prorrated IQ" which removes the processing from the IQ, equivalent to what the GAI is in the WISC, but not as common. Gifted schools in our area seem to want to look at both the FS and the one not including processing speed. In Morgan's case, it would give a slightly higher IQ, probably not by much because her processing speed is not that much lower than her PIQ.

    Did you get grade level equivalents for her achievement scores? Did you get a full report already or just the numbers?

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    That helps thank you. I have no idea why they substituted for block design. I will have to ask when I speak with the tester. I'm assuming I have the full report since it includes the scores and the tester's summary, but I do not have grade equivalents. It only says "the majority of Morgan's academic skills fall into the second grade level" I'm assuming this is referring to the achievement scores.


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