With respect to internal validity,quasi-experiments often appear to be inferior to randomized experiments.

Question

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Quasi-experiments are often subject to selection bias, which can threaten internal validity. Without random assignment, it is difficult to ensure that differences between groups are not due to pre-existing differences in the groups rather than the intervention itself. Randomized experiments, on the other hand, minimize selection bias by randomly assigning participants to groups, increasing internal validity.

With Respect to Internal Validity,quasi-Experiments Often Appear to Be Inferior