Experimental and nonexperimental studies both involve comparing groups of scores.

Name: Experimental and nonexperimental studies both involve comparing groups of scores.
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Question

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Both experimental and nonexperimental studies involve comparing groups of scores, although the methods used to assign participants to groups differ. Experimental studies use random assignment, while nonexperimental studies may use preexisting groups or other nonrandom methods.

Experimental and Nonexperimental Studies Both Involve Comparing Groups of Scores