The poll was conducted in all regions of Ukraine (with the exception of Crimea, Donetsk and Luhansk oblasts) from September 7-21, 2015, with an oversample in the Zakarpattia region. The national survey had a randomly selected sample of 1,200 permanent residents of Ukraine aged 18 and older and eligible to vote. The margin of error does not exceed plus or minus 2.8 percent, and the response rate was 63.9 percent. The oversample in Zakarpattia had a randomly selected sample size of 633 permanent residents, a 65 percent response rate and a margin of error that does not exceed plus or minus 3.9 percent.international.
The survey was conducted by Rating Group Ukraine for International Republican Institute (IRI) and was funded by the U.S. Agency for International Development.