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Analyzing The Exit Poll Works : Conducting National Exit Polls

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1.1 HOW EXIT POLL WORKS: Conducting national exit polls is an enormous undertaking, requiring as long as two years to implement. The goal of the process is to collect information on a subset of voters that can be projected to the entire active electorate with a high degree of confidence. Numerous obstacles, though, stand in the way, threatening to undermine the effort and bias the results. Exit polls, like most surveys, unfold in four distinct but often overlapping stages / Research-ers usually begin by developing procedures for drawing a probabilistic sample of voters whose responses can be inferred to the active electorate with a high degree of confidence. They develop a questionnaire, capable of both describing the types of voters participating in an election as well as offering insights into the reasoning behind their choices. Interviewers are trained and eventually employed to disseminate the questionnaires to and collect them from sampled voters on Election Day. The process concludes with the integration of voters’ responses into a data set for analysis. The specific procedures used for each stage vary by polling organization; therefore, I focus my discussion on those procedures developed by Warren Mitofsky, Murray Edelman, and their col¬leagues at CBS and used by the polling units employed by the network consortium to conduct the national exit polls. 1.2 THE STAGES OF EXIT POLLING PROCESS: 1) Sampling The first stage of the exit polling process is selecting a

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