When the goal of evaluation is to compare alternative programs,it may be preferable to ______.
A)randomize whole groups,not individuals,to different groups
B)randomize individuals,not whole groups,to different groups
C)randomly sample small groups from a small population
D)make sure to have a small sample size

Question

Quizplus · Accepted Answer

Randomizing whole groups, rather than individuals, to different groups is often preferable when comparing alternative programs because it helps to minimize the risk of contamination across groups. This approach, known as cluster or group randomization, is particularly useful in situations where individuals within the same group (such as a school or community) are likely to influence each other or share similar characteristics.

When the Goal of Evaluation Is to Compare Alternative Programs,it