Center for Opinion Research
The Department of Political Science & History operates a full scale polling center, which includes professional computer assisted telephone interviewing (CATI) software and 20 work stations for students to learn about survey research by experiencing how the data is collected.
|Polling Center Press Release||Texas Survey (September 2019)|
The statewide poll by The University of Texas at Tyler in September followed the third Democratic Presidential Debate, which took place in Houston, TX. The survey was designed to ask relevant questions to 1,199 registered voters in Texas, while at the same time giving self-identified Democrats and Independents that lean to the Democratic Party (474 registered voters) the opportunity to answer additional questions about candidates in the race.
The poll was conducted over a three-day period (09/13/19 – 09/15/19).
The UT Tyler-Texas Opinion Survey poll was conducted using random sample of the registered voters that have opted-in to take surveys through a company called Dynata. The online panel generated a sample of 1,199 registered voters during a three day period from between September 13 and September 15.
The data were weighted to be representative of the Texas register voter population. Iterative weighting was used to balance sample demographics to the state population parameters. The sample is balanced to match parameters for gender, age, race/ethnicity, and education using an iterated process known as raking. These parameters were derived from 2018 Current Population Survey to reflect Texas’s electorate. The use of these weights in statistical analysis ensures that the characteristics of the sample closely reflect the characteristics of registered voters in Texas.
In this poll, the sampling error for 1,199 registered voters in Texas is +/- 2.8 percentage points at a 95 percent confidence interval. The survey’s design asked additional questions to 474 registered voters who identify with the Democratic Party as members or independents that lean towards the party (margin of error of +/- 4.5%).