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(Video: Correlation and Causation) Random Assignment Is Important in an Experiment

Question 112

Multiple Choice

(Video: Correlation and causation) Random assignment is important in an experiment because


A) otherwise participants will not know the parameters of the experiment.
B) the two groups will be the same on average for all variables.
C) participants can opt into the group they want.
D) the two groups will be different enough that the third-variable problem will be

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