Informed Consent Procedures in Telephone Interviews
作者通过电话访谈实验，研究了不同知情同意程序对数据质量和受访者体验的影响。实验基于随机拨号样本，变化了两个因素：关于访谈内容的信息和关于访谈目的的信息。结果发现，这些信息变化对整体应答率、项目无应答或回答质量没有显著影响。虽然提供最多信息的受访者应答率最高，但差异不显著。然而，披露研究的方法论目的可能对最敏感问题的无应答产生负面影响。最大的应答率差异出现在不同访谈员之间，而非实验处理。
This study experiments with different ways of informing respondents about a survey in order to see how such diffrrences affect the quality of the data collected and the meaning of the experience fir them. Extending earlier work on informed consent in personal interviews, it replicates essential features of the earlier study in telephone interviews with an RDD sample. Two factors were varied in the present study: information (about the content of the inter view, and information about its purpose. Neither of these significantly affected the response rate to the survey as a whole, item nonresponse, or response quality. The response rate WaVS highest among those respondents given the most information about the survey's content and purpose, but again not significantly so. There was, however, a suggestion that nonresponse to the most sensitive items on the questionnaire may have been adversely affected by disclosure ojfthe study's methodological purpose. Byjfar the largest variation in response rate to the survey occurred among interviewers, rather than as a result of the experimentally varied survey introductions.