As a Technique for Creating Equivalent Groups, When Is Matching

question 16

Multiple Choice

As a technique for creating equivalent groups, when is matching preferred over random assignment?

• A)when a large number of subjects are available and can be used
• B)when some extraneous variable is known to correlate with the dependent variable
• C)whenever a within-subjects design is preferred over a between-subjects design
• D)whenever a potential confound exists, but you aren't aware of its presence

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