Winthrop University: Winthrop Poll - Current Poll Methodology
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Winthrop Poll
10 Dinkins Hall
Rock Hill, SC 29733, USA

Methodology Statement


Survey Methodology

October 1, 2019 Winthrop Poll

These results represent the responses of 462 Democratic and Democratic Leaning Registered Voters and 406 Republican and Republican Leaning Registered Voters. Results that use all Democratic and Democratic Leaning respondents have a margin of error of +/- 4.6% at the 95% confidence level. Results that use all Republican and Republican Leaning respondents have a margin of error of +/- 4.9% at the 95% confidence level.

Calls were made between 9/21-9/30, 2019 Margins of error are based on weighted sample size and account for design effects.
Phone calls were made primarily during weekday evenings, all day Saturday, and Sunday afternoon and evening. Conducting weekend calls is important to avoid systematically excluding certain populations (such as those who may work 2nd or 3rd shift during the week). The prolonged dates are due to two other large survey projects going on at the same time.

The survey used sample of Registered Voters in South Carolina.  All samples were purchased from Dynata (formerly Survey Sampling International). 

Data are weighted based on age, sex, and race using South Carolina Election Commission data.

Phone numbers selected for the survey were re-dialed up to 4 times in an attempt to reach a respondent. Surveys were conducted in English.  

Computerized autodialers were not used in order to ensure the survey of wireless phones complied with the Telephone Consumers Protection Act and all FCC rules regarding contacting wireless telephones.  73% of the completions came from the wireless sample.

The Winthrop Poll is paid for by Winthrop University.


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Last Updated: 10/1/19