Key points are not available for this paper at this time.
Journal Article MAIL QUESTIONNAIRE EFFICIENCY: CONTROLLED REDUCTION OF NONRESPONSE Get access STANLEY D. BACHRACK, STANLEY D. BACHRACK graduate student Department of Political Science, University of CaliforniaLos Angeles Search for other works by this author on: Oxford Academic Google Scholar HARRY M. SCOBLE HARRY M. SCOBLE Assistant Professor Department of Political Science, University of CaliforniaLos Angeles Search for other works by this author on: Oxford Academic Google Scholar Public Opinion Quarterly, Volume 31, Issue 2, SUMMER 1967, Pages 265–271, https://doi.org/10.1086/267518 Published: 01 January 1967
Bachrack et al. (Sun,) studied this question.