57% Stutzman (R)
32% Hayhurst (D)
7% Wise (L)
Statement of Methodology for U.S. House 3rd District of Indiana:
SurveyUSA interviewed 565 registered voters from Indiana's 3rd Congressional District 10/21/10 through 10/25/10, using Registration Based Sample (RBS) from Aristotle in Washington DC. Of the registered voters, 400 were determined by SurveyUSA to have already voted, or to be likely to vote in the 11/02/10 midterm election. Where necessary, responses were weighted according to the voter registration database. In theory, with the stated sample size, one can say with 95% certainty that the results would not vary by more than the stated margin of sampling error, in one direction or the other, had the entire universe of respondents been interviewed with complete accuracy. There are other possible sources of error in all surveys that may be more serious than theoretical calculations of sampling error. These include refusals to be interviewed, question wording and question order, weighting by demographic control data and the manner in which respondents are filtered (such as, determining who is a likely voter). It is difficult to quantify the errors that may result from these factors. Fieldwork for this survey was done by SurveyUSA of Clifton, NJ.
http://www.realclearpolitics.com/docs/2010/DownsSUSA_IN_1026.htm
