Quick Methodology
The November Winthrop Poll was a mixed-mode online and phone survey conducted and paid for by Winthrop University. The survey is a probability sample of adult residents of South Carolina. Respondents were randomly selected either from online panels (32.6% of respondents) or via random digit dial for those contacted by phone (67.4% of respondents). Data from 1298 (weighted) respondents were collected between October 22 and November 5, 2022. Results using all respondents have a margin of error of +/- 2.8% at the 95% confidence level. All subgroups will have a higher margin of error.
AAPOR Transparency Initiative Statement
The November Winthrop Poll was a conducted online and via telephone and paid for by Winthrop University (1,2). The online sample is a probability sample drawn from panels of adult residents of South Carolina curated by Cint and purchased from M-S-G (4,5). The telephone sample is a probability sample of South Carolina adults reached via cell phone (92.7% of phone respondents) or land line (7.3% of phone sample) (4,5). Data were weighted on sex, race and age based on data from the US Census Bureau (9). Full question wording for released results are included; full instrument available upon request (3). Participants responded using CAPI via computer or smartphone for the online sample and were hand-dialed by trained interviewers using a CATI system for the telephone sample; the survey averaged 12 - 15 minutes (6). Data were collected between October 22 and November 5, 2022. (7). Weighted data include a sample of 1298 respondents which translates to a margin of error of +/- 2.8% at the 95% confidence level for results using all respondents; all subgroups will have a higher margin of error (8). Center for Public Opinion & Policy Research personnel conducted quality control by eliminating data with inappropriate responses (didn’t match the question asked), “line” data (strings of the same number punched in in a long row), or completions recorded too quickly for an individual to have actually read the questions for data collected online and through direct supervision and full monitoring for responses collected via telephone (10). All survey research contains unmeasured error and results should be seen as informative, not definitive (11).
Numbers correspond to the AAPOR Transparency Initiative Disclosure Elements.
