We resolve a controversy over two competing hypotheses about why people object to randomized experiments: 1) People unsurprisingly object to experiments only when they object to a policy or treatment the experiment contains, or 2) people can paradoxically object to experiments even when they approve of implementing either condition for everyone. Using multiple measures of preference and test criteria in five preregistered within-subjects studies with 1,955 participants, we find that people often disapprove of experiments involving randomization despite approving of the policies or treatments to be tested.

中文翻译：

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即使在批准它们比较的政策或治疗时也反对实验。

我们针对两个为什么人们反对随机实验的假设解决了一个争议：1）人们仅在反对实验包含的政策或待遇时才反对实验，或者2）即使他们同意，人们也可以反常反对实验为每个人实施任何条件。在五项预登记的受试者内部研究（有1,955名参与者）中使用多项偏好和测试标准的度量，我们发现尽管批准了要测试的政策或治疗方法，但人们经常不赞成涉及随机化的实验。