DrJohansen Randomly Assigned Subjects to Three Different Groups During Her

question 6

Multiple Choice

Dr.Johansen randomly assigned subjects to three different groups during her last experiment.She then proceeded to give all the participants in the experiment a new study technique designed to enhance their learning for the upcoming test.What critical error did she make during her experiment?

• A)She failed to identify the independent variable.
• B)She failed to identify the dependent variable.
• C)She failed to include an experimental group.
• D)She failed to include a control group.

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