the Center on Nonprofits and Philanthropy contracted with the Greater Washington Research Center to include four questions in its April 1997 consumer survey of the Washington, D.C. metropolitan area that pertain to how individuals interact with religious congregations. Specifically, survey respondents were asked if they attend religious services, donate money, volunteer their time, or use social services offered by congregations. The survey also contained information on respondents' race, annual household income, and place of residence.