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CBS News South Carolina Primary Call-Back Poll, January 2008 (ICPSR 26141)

Published: Sep 21, 2009

Principal Investigator(s):
CBS News


Version V1

This special topic poll, fielded January 23-24, 2008, re-interviewed 163 South Carolina registered voters first surveyed December 13-17, 2007, and included an oversample of African Americans. The dataset includes their responses to call-back questions as well as to selected questions in the original poll, CBS NEWS/NEW YORK TIMES SOUTH CAROLINA PRIMARY POLL, DECEMBER 2007 (ICPSR 24364), which queried South Carolina voters on George W. Bush's presidency, the upcoming 2008 presidential campaign and South Carolina presidential primary, whether they had ever voted in a primary, their opinions of the Democratic presidential nominees, and the likelihood that they would vote for a presidential candidate of a different race and gender than their own. In the call-back poll conducted a few days prior to the South Carolina Democratic primary on January 26, 2008, voters were re-interviewed about how much attention they were paying to the 2008 presidential race, the likelihood that they would vote in the upcoming Democratic presidential primary, if they had changed their choice of candidate since the last survey and why, the importance of the results of other state's primaries in their vote, and their opinions of Democratic presidential nominees Barack Obama, Hillary Clinton, and John Edwards. Questions were also posed regarding Bill Clinton's involvement in Hillary Clinton's campaign and whether America was ready to elect a president who was Black or a woman. Respondents who already voted in South Carolina's Republican primary on January 19, 2008, were asked for whom they had voted. Demographic information includes sex, age, race, education level, household income, marital status, type of residential area (e.g., urban or rural), political party affiliation, political philosophy, voter registration status and participation history, labor union membership, the presence of children under 18, religious preference, frequency of religious attendance, whether respondents considered themselves to be born-again Christians, and whether any household member had served in the armed forces in Iraq.

CBS News. CBS News South Carolina Primary Call-Back Poll, January 2008. Ann Arbor, MI: Inter-university Consortium for Political and Social Research [distributor], 2009-09-21.

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2008-01-23 -- 2008-01-24

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.

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.

The data available for download are not weighted and users will need to weight the data prior to analysis.

The CASEID variable was reformatted in order to make it a unique identifier.

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).

Registered voters aged 18 and over living in households with telephones in the state of South Carolina.


survey data



2009-09-21 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.

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.


  • Data in this collection are available only to users at ICPSR member institutions.

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This study is provided by ICPSR. ICPSR provides leadership and training in data access, curation, and methods of analysis for a diverse and expanding social science research community.