In the Context of Experimental Research,the Logic of Random Assignment

question 19

Multiple Choice

In the context of experimental research,the logic of random assignment is:

• A)if participants in an experiment are assigned to each group by stratification, the actual differences between the groups will sustain over the long run.
• B)if participants in an experiment are assigned to each group only by chance, the actual similarities between the groups will sustain over the long run.
• C)if participants in an experiment are assigned to each group by stratification, the potential differences between the groups will cancel out over the long run.
• D)if participants in an experiment are assigned to each group only by chance, the potential differences between the groups will cancel out over the long run.