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    Psychology A-Level

    Psychosocial Law

    What Psychosocial Law means in Psychology A-Level, as defined for Pearson Edexcel.

    Definition of Psychosocial Law

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    Reference: Pearson Edexcel

    The principle that the first source of influence has the most impact, and each additional source has progressively less impact.
    Pearson Edexcel · Content (study guide)

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