1. SURVEY METHODOLOGY
• From June 1, 2011 to June 8, 2011, Penn Schoen Berland conducted 2,017 interviews with
the adult general population of the United States. Of the 2,017 interviews completed, 1,008
interviews were conducted by phone and 1,009 interviews were conducted online.
Sample Size Margin of Error
General Population (All), including: 2,017 ±2.18%
Male 968 ±3.15%
Female 1,049 ±3.03%
Age 18-29 444 ±4.65%
Age 30-44 545 ±4.20%
Age 45-64 686 ±3.74%
Age 65+ 343 ±5.29%
Democrats 625 ±3.92%
Republicans 585 ±4.05%
Independents/Undecided 807 ±3.45%
Less than $75K annual income 1,392 ±2.63%
$75K+ annual income 524 ±4.28%
College degree 629 ±3.91%
No college degree 1,357 ±2.66%
White 1372 ±2.65%
African-American 242 ±6.3%
Hispanic 262 ±6.05%
• The data presented in this study is reflective of the U.S. Census Bureau demographic
statistics in terms of gender, age, ethnicity, income, education, region, and urbanicity.
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