The primary reason why randomization is likely not possible in evaluation research is that ______.

Question

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Randomization involves assigning participants or cases into different groups randomly in order to reduce bias and increase the accuracy of the results. However, in evaluation research, the program being evaluated is often already in place and outside the control of the evaluator. As a result, the evaluator cannot randomly assign individuals to a treatment group and a control group. Instead, they may have to use quasi-experimental designs or non-experimental designs to evaluate the program.

The Primary Reason Why Randomization Is Likely Not Possible in Evaluation