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    #243921 - 09/19/18 08:12 PM About WAIS
    Aden Offline
    Junior Member

    Registered: 07/29/18
    Posts: 35
    Hello. What would be the difference between a 16, 17, 18, and a 19 scaled score in terms of raw scores on any subtest on a WISC?

    #243991 - 09/28/18 07:15 AM Re: About WAIS [Re: Aden]
    Klangedin Offline
    Junior Member

    Registered: 10/24/13
    Posts: 20
    From what I've learned the raw scores differ from test to test. For example digitspan has a lower total points than similarities because there are fewer "problems" and they might give different amount of points if success. For example: you can only get digitspan right if you remember all digits presented however an answer to similarities can give 0-1-2 points depending on quality.

    1 scaled point is 5 iq points and a scaled score of 10 is average - 100 IQ. So a score of 19 would be 145 IQ. The real interest is what percentil a score belongs to. For example (scaled score 10) 100 iq is in the 50%, (scaled score 13) is 115 is 84% and scaled score 19 is 145 99.9%

    Chart of scores!


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