polls and public opinion
Undecideds, in election campaign lingo, are voters who have yet to decide which candidate—or side of an issue or referendum—they will support on Election Day. In pre-election polls, there are several ways of measuring support for a candidate or issue and, con-comitantly, the number of undecided voters. [Source: Encyclopedia of Survey Research Methods; Undecided Voters]
undecided voters
concepts