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    Compare two treatment conditions: Why do the scores differ?

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    A researcher plans to compare two treatment conditions by measuring one sample in treatment 1 and a second sample in treatment 2. The researcher will then compare the scores for the two treatments. If there is a difference between the two groups of scores,

    a. Briefly explain how the difference may have been caused by the treatments.
    b. Briefly explain how the difference simply may be simple error.

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    Solution Preview

    a. There may be a real difference between the two treatment conditions. The difference between the scores from two groups may be ...

    Solution Summary

    This solution explains the causes of an observed difference between two treatment conditions.