Third Time’s a Charm? Analysis of the Effect of Sending a Third Questionnaire for Mail Surveys

Witt-Swanson, L., Dykema, J., & Assad, N. (2019). Third Time’s a Charm? Analysis of the Effect of Sending a Third Questionnaire for Mail Surveys. In . Paper presented at the annual meeting of the Midwest Association for Public Opinion Research, November, Chicago, IL. (An earlier version of this paper was presented at the International Field Directors & Technologies Conference, 2019, Montreal, Canada.).
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