hxxp://caucuses.desmoinesregister.com/2011/12/31/varying-scenarios-varying-results/
Most troubling part:
Most troubling part:
DEMOCRATS — Our poll methodology relies on sampling only from registered Republicans and independents. We’ve elected to exclude registered Democrats because of the cost of interviewing the small numbers of Democrats likely to attend a Republican caucus, with little expected influence on the final outcome.
However, a pollster does not want a method that blinds her to change when it happens. People who are registered Democrats today could turn up on caucus night, change their registration and have their votes counted.
So, we conducted an experiment during the first two nights of interviewing. We mounted a separate study to gauge the likely incidence of registered Democrats intending to caucus for the Republicans and to look at their candidate preference. On both nights, we found the incidence to be 3 percent. That is, of 200 conversations with registered Democrats, just six said they would definitely or probably attend the Republican caucuses. That is statistically too few to have measurable impact, unless the race is tight and all these registered Democrats opt for the same candidate.
This is the most fascinating part of our test. Each of the six had a different candidate preference: one each for Gingrich, Huntsman, Paul, Perry and Romney, and one for “other.” Only Bachmann and Santorum fail to attract one of the six votes.
People who love politics love this kind of surprise battle, where there is a path to victory for a number of candidates.