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    Calculating the Mean Difference

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    Please show me how you would approach calculating the following, I don't understand what MD is.

    Calculate the difference in scores and find the MD for the following data from a repeated-measures study.

    Subject Treatment 1 Treatment 2
    A 34 44
    B 41 39
    C 30 45
    D 21 30

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    Solution Preview

    Solution. We take a difference by using the second score - first score. So,

    Subject Treatment 1 Treatment 2 ...

    Solution Summary

    This solution helps calculate mean difference.