Which method does NOT use random assignment to assign participants to groups?

Name: Which method does NOT use random assignment to assign participants to groups?
Brand: Quizplus
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Question

Quizplus · Accepted Answer

Random assignment is crucial in order for groups to be equivalent at the start of the experiment. If group assignment is based on the order that participants arrive, there may be systematic differences between groups that could confound the results. A, B, and C all use random assignment methods to ensure equal group allocation.

Which Method Does NOT Use Random Assignment to Assign Participants