Control Is Important in Experimental Research

question 1

Multiple Choice

Control is important in experimental research. Which of the following statements is true in regard to control in an experimental study?

• A) Control is obtained by randomly assigning people to treatment groups.
• B) Ideally, in an experimental research study, all groups are treated the same except for the treatment variable.
• C) Control is sometimes obtained by matching people before assigning them to groups.
• D) Control is sometimes obtained by using a control group.
• E) All of these are correct.

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