Mid-Apr10-omnibus.zip

Field dates & sample:

Conducted April 8–11, 2010

N = 1,001 U.S. adults

Interviews conducted by landline and cell phone RDD

Includes both cell-only and dual phone households

Weights:

WEIGHT is the combined adjustment for all landline and cell phone interviews

Must be applied for all analysis

Geographic coding:

Based on self-reported ZIP codes (since Fall 2008)

ZIP codes not provided or unmatched → sample frame geography used

Personally identifiable geography (ZIP, county, phone numbers) removed for privacy

Omnibus survey design:

Question numbering differs between SPSS dataset and topline/questionnaire