Random assignment is a crucial component of experiment design.Failing to use random assignment when placing participants into groups would have the strongest effect on the ________ of an experiment.

Question

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Random assignment ensures that participants are equally distributed among groups, increasing the likelihood that any differences observed in the results are due to the independent variable being manipulated, rather than differences among the participants themselves. Failing to use random assignment would weaken the internal validity of the study, as it would be difficult to determine whether the independent variable or extraneous variables were responsible for any observed effects.

Random Assignment Is a Crucial Component of Experiment Design