Question

Random assignment is used in experiments because Group of answer choices 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. if participants in an experiment are assigned to each group by stratification, the actual differences between the groups will sustain over the long run. if participants in an experiment are assigned to each group by stratification, the potential differences between the groups on other characteristics will cancel out over the long run. if only chance determines which participants are assigned to each group in an experiment, the potential differences on other characteristics will cancel out over the long run.

          Random assignment is used in experiments because
Group of answer choices
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.
if participants in an experiment are assigned to each group by stratification, the actual differences between the groups will sustain over the long run.
if participants in an experiment are assigned to each group by stratification, the potential differences between the groups on other characteristics will cancel out over the long run.
if only chance determines which participants are assigned to each group in an experiment, the potential differences on other characteristics will cancel out over the long run.

Added by Joseph W.

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