The Associated Press-GfK Battleground State Polls on the 2008 presidential, Senate and gubernatorial races in eight contested states were conducted by GfK Roper Public Affairs & Media from Oct. 22-26. The polls were conducted by landline telephone with statewide representative random samples of approximately 800 adults, including around 600 likely voters in each state.
The states are Colorado, Florida, New Hampshire, Nevada, North Carolina, Ohio, Pennsylvania and Virginia.
Likely voters completed the entire questionnaire. The balance of the sample completed a shorter questionnaire.
Digits in the phone numbers dialed were generated randomly to reach households with unlisted and listed landline numbers. Interviews were conducted in English and Spanish.
As is done routinely in surveys, results were weighted, or adjusted, to ensure that responses accurately reflect the population’s makeup by factors such as age, sex, education, and race.
The margin of sampling error for likely voters in each poll was either plus or minus 3.9 percentage points or plus or minus 4 points. That means no more than one time in 20 should chance variations in the sample cause the results to vary by more than about 4 percentage points from the answers that would be obtained if all adults in each state were polled.
There are other sources of potential error in polls, including the wording and order of questions.
The questions and results for this poll are available at .
