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    Joined: Dec 2016
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    Hi, this is my first post here. We recently had our DD10 tested for gifted education at school. We live in Europe, schools operate with cutoff at approximately 130 but no fixed limits.

    I got the results today, but no numbers, only percentiles.The psych would not give out the rest because she does not believe in IQ-scoring children. (!)

    I think she might score above criteria on GAI, but not FSIQ. The percentiles we were given were:
    VCI 93rd percentile (approximately 123?)
    PRI 99.7 percentile (approximately 142?)
    FSIQ 96 percentile (approximately 127?)
    WMI 85 percentile (approx 118?)
    PSI 79 percentile (approx 112?)

    Is it possible to find a conversion table that would indirectly give us scaled scores and thereby GAI? Or does anyone have the same scores and could tell us what the scaled score would be?

    Thanks!!

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    You'd need the 10 subtest scores (each with max of 19) that go into the VCI and the PRI to calculate GAI.

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    Yeah I know, and I wrote an e-mail today trying to persuade her to let us see the test report. In the meanwhile I am trying to extrapolate what her scaled scores might be based on the percentiles that I got.

    I thought someone else might have gotten a similar percentile and then use the underlying scaled score to calculate GAI.

    So far, I have gotten this far:
    -Scaled score for PRI should be approximately 54 in order to yield 99,7 percentile.
    -Scaled score of VCI should be approximately 42 in order to give 93rd percentile.
    -Altogether SSS of 94-96 and thereby a GAI of 142-144?

    Does that sound about right?

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    My DS's PRI score was the same and VCI was 114 and his GAI was 133 if that helps you at all.

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    It said specifically in the report by the neuropsych that the GAI should be used to get an idea of his reasoning ability, not the FSIQ which was 126 or 127 or something like that.

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    Who paid for the test?

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    pm'd you.


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    Based on the percentiles, the index scores would be, in the order you originally presented them:

    122
    141 or 142
    126 or 127
    115
    112

    While you are understandably concerned about the GAI vs the FSIQ, I should mention that the distance between the two indices that make up the GAI is substantial enough that even the GAI may not be the best indicator of ability.


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    Thank you so much everyone! We paid for the test ourselves so it's kinda strange that she won't release the scores. She gave out some of the scaled scores (unsorted by category), and if the SSS for the GAI is either 87 or 89 she might just "squeeze in", I think.

    But if we can't use neither GAI nor FSIQ, what can we use as a measure of her ability?

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    ..Does anyone know exactly what the critical limit for PRI/ VCI-discrepancy is, before GAI is inadmissible?

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