Why Would a Researcher Use an Elimination Criterion Like "Must

question 14

Multiple Choice

Why would a researcher use an elimination criterion like "Must not have baseline liver function tests that are outside the normal range"?

• A)Impaired liver function may have been identified by the researcher as an extraneous variable.
• B)The intervention planned by the researcher could have an adverse effect on individuals with impaired liver function.
• C)Liver function tests are possibly being measured in order to detect the independent variable's effect on the dependent variable.
• D)The researcher is attempting to eliminate persons with all laboratory tests that are outside normal range.
• E)The dependent variable may be abnormally elevated in persons who do not have normal liver function.

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