A Researcher Has Conducted an Experiment in Which She Assigned

question 74

Multiple Choice

A researcher has conducted an experiment in which she assigned all of her students four hours of homework the night before a test, in order to see what effect the extra stress has on test performance. The study is flawed because the researcher did not include a(n) _____

• A)control group.
• B)experimental group.
• C)independent variable.
• D)random sample.

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Definitions:

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