WHY THE DEMOCRAT-REPUBLICAN PARTISANSHIP GAP VARIES FROM POLL TO POLL |
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| Authors: | BORRELLI, STEPHEN LOCKERBIE, BRAD NIEMI, RICHARD G. |
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| Affiliation: | doctoral candidates in the Department of Political Science, University of Iowa
Professor of Political Science, University of Rochester |
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| Abstract: | Polls taken in late 1980 and 1984 varied by up to 20 pointsin the spread they reported between Democratic and Republicanidentifiers. We found three systematic and sizable differencesacross polls: polls that sample only voters, polls that emphasize"today" or the present in their question wording, and pollsthat are taken close to election day (at least in circumstanceslike those of 1984) tend to favor the party currently advantagedin the presidential race. |
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