Michigan Public Policy Survey Restricted Use Datasets, Michigan, 2008-2016

The MPPS was administered via two modes. For those officials for whom an email address could be identified, an email invitation was sent containing a URL link to the survey instrument online. For those officials for whom no email address was available, hard copy questionnaires were mailed out in the week prior to the launch of the survey via USPS, scheduled for delivery during the first week of field period.MPPS采用两种实施方式。针对可获取电子邮箱地址的受访官员，研究人员将发送包含在线调查工具URL链接的电子邮件邀请；针对无法获取电子邮箱地址的受访官员，则于调查正式启动前一周通过美国邮政（USPS）寄出纸质调查问卷，该批问卷计划于实地调查阶段第一周完成投递。