Internet surveys of American Evaluation Association (AEA) members are a common method for studying evaluation practice. Response rates obtained from Internet surveys of AEA members are, however, frequently very small. To investigate whether or not material incentives increase response rates to Internet surveys of AEA members, a between-subjects three-treatment and one control randomized experiment in which a randomly selected sample of AEA members were randomly assigned to a no-incentive control condition, lottery condition, token incentive condition, or philanthropic donation incentive condition was utilized. The overall response rate to the survey was 39.66% and the response rates for each of the four conditions were control = 36.24%, lottery = 44.39%, token incentive = 43.28%, and philanthropic donation = 34.67%, respectively. The cost-effectiveness of each of the four conditions also was examined, demonstrating that the lottery was the most cost-effective. Other factors potentially influencing response or nonresponse decisions also are discussed.

中文翻译：

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与美国评估协会成员互联网调查的响应率相关的物质激励和其他潜在因素：随机实验的结果

美国评估协会（AEA）成员的网络调查是研究评估实践的常用方法。然而，从 AEA 成员的互联网调查中获得的响应率通常非常小。为了调查物质激励是否会提高对 AEA 成员互联网调查的响应率，一项受试者间三处理和一个对照随机实验，其中随机选择的 AEA 成员样本被随机分配到无激励控制条件，抽签条件、代币激励条件或慈善捐赠激励条件。调查的总体响应率为 39.66%，四个条件的响应率分别为控制 = 36.24%、彩票 = 44.39%、代币激励 = 43.28% 和慈善捐赠 = 34.67%。还检查了四个条件中每一个的成本效益，证明彩票是最具成本效益的。还讨论了可能影响响应或不响应决策的其他因素。