Question:

Poll Demographics

About this Poll

The survey findings presented in this release are based on the results of
interviews conducted April 8-13, 2008. 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 Project Manager, Jennifer Harding. Interviews were completed with
547 registered Democrats in Pennsylvania. Telephone numbers for the survey
were generated via random digit dialing, and respondents were randomly selected
from within each household. The sample error for the entire sample is +/- 4.2
percent. Among the 367 likely Democratic voters, the sample error is slightly
larger (+/- 5.1 percent). In addition to sampling error, this poll is also subject to
other sources of error.