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    Psychology A-Level

    third variable problem

    What third variable problem means in Psychology A-Level, as defined for OCR.

    Definitions of third variable problem

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    Reference: OCR

    One of the two criticisms that reliably earn evaluation marks, alongside the possibility that the causal arrow runs the other way.
    OCR · Research methods and techniques
    An unmeasured third variable may be driving both measures, and nothing in the picture fixes the direction of any influence.
    OCR · D.1 – handling data

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