Principal Investigator(s): CBS News
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CBS News. CBS News South Carolina Primary Call-Back Poll, January 2008. ICPSR26141-v1. Ann Arbor, MI: Inter-university Consortium for Political and Social Research [distributor], 2009-09-21. http://doi.org/10.3886/ICPSR26141.v1
Persistent URL: http://doi.org/10.3886/ICPSR26141.v1
Scope of Study
Subject Terms: attitudes, Bush Administration (George W., 2001-2009), campaign issues, Clinton, Bill, Clinton, Hillary, Edwards, John, national elections, Obama, Barack, political campaigns, presidency, presidential candidates, presidential elections, presidential performance, primaries, public opinion, voting behavior
Date of Collection:
Unit of Observation: individual
Universe: Registered voters aged 18 and over living in households with telephones in the state of South Carolina.
Data Types: survey data
Data Collection Notes:
The data available for download are not weighted and users will need to weight the data prior to analysis.
This call-back poll re-interviewed 163 registered voters who had participated in the CBS NEWS/NEW YORK TIMES SOUTH CAROLINA PRIMARY POLL, DECEMBER 2007 (ICPSR 24364). This data collection includes their responses to the call-back questions as well as selected questions from the original poll. Original survey questions are identified with the prefix "Q", while call-back questions are identified as "RQ". Call-back respondents were identified in the OSMP variable.
The CASEID variable was reformatted in order to make it a unique identifier.
Truncated value labels in the variable EDUC were corrected, and code 38 in variable Q6 was edited to refer to the president in office at the time of the survey.
This data collection was produced by CBS News, New York, NY.
Sample: The January 2008 call-back poll re-interviewed registered voters who had participated in the original survey (December 13-17, 2007) and included an oversample of African Americans. In the original survey, a variation of random-digit dialing using primary sampling units (PSUs) was employed, consisting of blocks of 100 telephone numbers identical through the eighth digit and stratified by geographic region, area code, and size of place. Within households, respondents were selected using a method developed by Leslie Kish and modified by Charles Backstrom and Gerald Hursh (see Backstrom and Hursh, SURVEY RESEARCH. Evanston, IL: Northwestern University Press, 1963).
Weight: The data contain weight variables that should be used in analyzing the data. According the CBS News Web site, the data were weighted to match United States Census Bureau breakdowns on age, sex, race, education, and region of the country. The data were also adjusted for the fact that people who share a telephone with others have less chance to be contacted than people who live alone and have their own telephones, and that households with more than one telephone number have more chances to be called than households with only one telephone number.
Mode of Data Collection: telephone interview
Extent of Processing: ICPSR data undergo a confidentiality review and are altered when necessary to limit the risk of disclosure. ICPSR also routinely creates ready-to-go data files along with setups in the major statistical software formats as well as standard codebooks to accompany the data. In addition to these procedures, ICPSR performed the following processing steps for this data collection:
- Checked for undocumented or out-of-range codes.
Original ICPSR Release: 2009-09-21
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