Detroit Metro Area Communities Study (DMACS) Wave 12, Michigan, 2021

The Detroit Metro Area Communities Study (DMACS) is a panel survey of Detroit residents launched in 2016. The original panel of respondents was drawn from an address-based probability sample of all occupied Detroit households. In subsequent years, the panel has been refreshed through additional address-based sampling. The 12th survey wave, collected between January 6, 2021 and March 5, 2021 included a sample refresh using multiple recruitment modes (mail, email, text, and phone). The researchers sent a total of 11,655 invitations to the survey: 1,766 to existing DMACS panelists who had already responded to at least one prior survey and 9,889 to residents of a randomly-selected address-based refreshment sample of Detroit households. This refreshment included an oversample of households in Census block groups that were at least 70% Hispanic and households in Strategic Neighborhood Fund (SNF) neighborhoods. Surveys were self-administered online or interviewer-administered via telephone. Adaptive design was used to increase response rates amongst hard-to-reach subgroups. The researchers report results for the 2,238 Detroit residents who completed the survey. The researchers obtained an overall response rate of 20.22% (using American Association for Public Opinion Research (AAPOR) Response Rate 1); 72.6% for existing panelists and 10.4% for new panelists.

《底特律大都会地区社区研究》（DMACS）是一项自2016年起启动的针对底特律居民的横截面调查。原始受访者群体来源于底特律所有占用住宅的基于地址的概率抽样样本。在随后的年份中，通过进一步的基于地址的抽样，对受访者群体进行了更新。2021年1月6日至3月5日收集的第12次调查波次中，采用了多种招募模式（邮件、电子邮件、短信和电话）进行样本更新。研究人员共向调查发出了11,655份邀请：1,766份发送给了已经至少参与过一次先前调查的现有DMACS受访者群体，以及9,889份发送给了随机选择的底特律住宅基于地址的更新样本居民。此次更新包括对至少70%为西班牙裔的普查区块组和战略社区基金（SNF）社区住宅的过度抽样。调查可以通过在线自助或电话由调查员进行。采用自适应设计以增加难以接触的子群体的回应率。研究人员报告了2,238名完成调查的底特律居民的调查结果。研究人员获得了总体回应率为20.22%（采用美国公共舆论研究协会（AAPOR）回应率1）；其中，现有受访者群体的回应率为72.6%，新受访者群体的回应率为10.4%。