Question:
Pres12MR. If the November 2012 general election for president was being held today and the candidates were [rotate] Mitt Romney the Republican and Barack Obama the Democrat, would you vote for: [rotate] Mitt Romney or Barack Obama, some other candidate, or aren’t you sure how you would vote? (407 registered respondents)
30% Romney
36% Obama
8% Other
27% Do not know

Pres12MB. If the November 2012 general election for president was being held today and the candidates were [rotate] Michelle Bachmann the Republican and Barack Obama the Democrat, would you vote for: [rotate] Michelle Bachmann or Barack Obama, some other candidate, or aren’t you sure how you would vote? (407 registered respondents)
23% Bachmann
42% Obama
12% Other
22% Do not know

Pres12RP. If the November 2012 general election for president was being held today and the candidates were [rotate] Rick Perry the Republican and Barack Obama the Democrat, would you vote for: [rotate] Rick Perry or Barack Obama, some other candidate, or aren’t you sure how you would vote? (407 registered respondents)
27% Perry
38% Obama
10% Other
26% Do not know

Pres12RS. If the November 2012 general election for president was being held today and the candidates were [rotate] Rick Santorum the Republican and Barack Obama the Democrat, would you vote for: [rotate] Rick Santorum or Barack Obama, some other candidate, or aren’t you sure how you would vote? (407 registered respondents)
31% Santorum
39% Obama
10% Other
20% Do not know

About this Poll
The survey findings presented in this release are based on the results of interviews conducted August 22-29, 2011. The interviews were conducted at the Center for Opinion Research at Franklin & Marshall College under the direction of the poll’s Director Dr. G. Terry Madonna, Head Methodologist Berwood Yost, and Senior Project Manager Angela Knittle. The data included in this release represent the responses of 525 adult residents of Pennsylvania, including 407 registered adults (216 Democrats, 140 Republicans, 42 registered as Independent/Other, and 9 who refused to identify party). Telephone numbers for the survey were generated using random digit dialing with a cell phone supplement, and respondents were randomly selected from within each household. Survey results were weighted (age, education, race, region, and gender) using an iterative weighting algorithm.

The sample error for this survey is +/- 4.3 percentage points. The sample error for registered adults is +/- 4.9 percentage points. In addition to sampling error, this poll is also subject to other sources of non-sampling error. Generally speaking, two sources of error concern researchers most. Non-response bias is created when selected participants either choose not to participate in the survey or are unavailable for interviewing. Response errors are the product of the question and answer process. Surveys that rely on self-reported behaviors and attitudes are susceptible to biases related to the way respondents process and respond to survey questions.