The Ethics of Randomization in Social Science Experiments

在过去的20年里，随机实验在社会科学中变得越来越普遍。他们将研究参与者随机分配到一个实验组或实验条件。虽然随机化可以是提高数据质量的一种措施，但它也是将这些实验条件的危害和好处分配给研究参与者及其社区的一种手段。这个项目将研究在社会科学实验中，通过随机分配来确定哪些参与者接受特定治疗何时是道德的问题。通过寻求这个问题的答案，该项目将为正在考虑随机实验的社会科学家提供新的工具。这些工具的目标是为参与研究实验的个人和社区提供更大的保护。首先，一组正式的（数学）模型将被开发来分析随机和非随机方法的研究参与者治疗分配的福利后果。虽然在人类受试者研究的伦理学文献中，形式化是罕见的，这些模型提供了一个新的，更直接的映射之间的实验设计决定如何分配治疗和这些决定的潜在伦理影响。研究团队将创建模型，这些模型将根据研究参与者的预期危害和益处进行通知。第二个研究目标是通过调整和实地测试方法，揭示潜在的研究参与者的期望，以衡量社会科学或政策干预的预期效益和危害。这一测试将在两个实地实验的背景下进行。通过该项目开发的工具将使研究人员能够在设计实验时衡量预期的危害和益处。最终的研究目标需要两种工具，正式的模型和预期的危害和好处的措施，创造新的教学材料，将伦理正式纳入实验研究设计。行为和经济科学。该奖项反映了NSF的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准。

Over the past twenty years, randomized experiments have become increasingly common in the social sciences. They involve randomly assigning research participants to an experimental group or condition. While randomization can be a measure for improving data quality, it is also a means of distributing harms and benefits of those experimental conditions to research participants and their communities. This project will examine the question of when it is ethical to determine through random assignment which participants receive a given treatment in social science experiments. By seeking to answer this question, the project will generate new tools for social scientists who are considering randomized experiments. The goal of these tools is to offer greater protections to individuals and communities that are participants in research experiments.This project consists of three research objectives. First, a set of formal (mathematical) models will be developed to analyze the welfare consequences of random and non-random methods for research participant treatment assignment. While formalization is rare in the literature on the ethics of human subjects research, these models offer a new, more direct mapping between experimental design decisions regarding how treatment is assigned and the potential ethical implications of these decisions. The research team will create models that are informed by the expected harms and benefits to research participants. The second research objective is to measure anticipated benefits and harms of social science or policy interventions by adapting and field-testing methods that reveal prospective research participants’ expectations. This testing will occur in the context of two field experiments. The tools developed through the project will enable researchers to measure expected harms and benefits when designing experiments. The final research objective takes both tools, the formal models and the measures of expected harms and benefits, to create new pedagogical materials that incorporate ethics formally into experimental research design.This project is funded through the ER2 program by the Directorate for Social, Behavioral and Economic Sciences.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.