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    Unfair tests lack what?

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    Gail complains that her history was unfair and "did not cover the material!" She is complaining that the tests lacks

    a. Reliability
    b. External validity
    c. Content validity
    d. Power

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    https://brainmass.com/statistics/designing-studies/unfair-tests-lack-what-31131

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    Answer: c. Content validity

    Content validity is established by showing that the test items are a sample of a universe in which the investigator is interested (i.e., history course). Content validity is ordinarily to be established deductively, by defining a universe of items (defining test items for the entire history course content)and sampling systematically (i.e., distributing an equal number of items per unit)within this universe to establish the ...

    Solution Summary

    Gail complains that her history was unfair and "did not cover the material!" What does the test lack? This solution provides the best answer and explanation.

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