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About the Poll

Jon Cohen
Washington Post Staff Writer
Saturday, July 7, 2007

This survey was conducted jointly by The Washington Post, the Henry J. Kaiser Family Foundation and Harvard University as part of an ongoing collaboration. The partners together developed and analyzed the survey. Each organization bears sole responsibility for the work that appears under its name. The Post and the Kaiser Family Foundation - a nonprofit that researches health care and other issues - paid for the surveys.

The poll was conducted by telephone from May 3 to June 3 among 1,708 randomly selected adults in Virginia, including additional interviews with self-identified independents for a total of 551 political independents. Interviews were conducted in English and Spanish. The margin of sampling error is plus or minus three percentage points for results based on all respondents and five percentage points for independents. ICR of Media, Pa., carried out the fieldwork.

The project team from the foundation included Drew E. Altman, KFF president, Mollyann Brodie, KFF vice president for public opinion research, and Elizabeth Hamel, KFF associate director for public opinion research; and from Harvard, Robert J. Blendon, professor at the School of Public Health and John F. Kennedy School of Government and John Benson, managing director of the Harvard Opinion Research Program.

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