The poll was conducted in all regions of Ukraine (with the exception of Crimea, Donetsk and Luhansk oblasts) from July 19-30, 2015, with an oversample in the Donbas region (
territories controlled by Ukrainian authorities). The national survey had a randomly selected sample of 1,800 permanent residents of Ukraine aged 18 and older and eligible to vote. The margin of error does not exceed plus or minus 2.3 percent, and the response rate was 65.9 percent. The oversample in Donbas had a randomly selected sample size of 1,284 permanent residents, a 59.7 percent response rate and a margin of error that does not exceed plus or minus 2.8 percent.international.
The survey was conducted by Rating Group Ukraine for International Republican Institute (IRI) and was funded by the Government of Canada.
English version of the report can be downloaded from the IRI.