THE IMPORTANCE OF PERSISTENCE IN RESPONDENT SELECTION FOR PREELECTION SURVEYS

Different techniques for respondent selection can affect dataquality. These differences can result in variations in the distributionof partisans in preelection surveys, which in turn can havean effect on the distribution of candidate preference. Persistencein trying to interview designated respondents in telephone householdsincreased the number of Republicans in a 1984 sample, and thereforeReagan's margin over Mondale. Such differences in interviewingtechniques might account for some of the variations in nationalpreelection estimates of the outcome of the presidential election,and they suggest that caution be used in comparing marginalsfor party identification from different surveys employing differentrespondent selection techniques.