The survey was conducted by Rating Group Ukraine on order of the International Republican Institute.  

Data was collected throughout Ukraine (except for the occupied territories of Crimea and part of the Donbas) from September 29-October 14, 2018. The sample consisted of 2,400 residents of Ukraine aged 18 and older and eligible to vote. The sample is representative by gender, age, region, and settlement size.

The margin of error does not exceed 2,0%. Average response rate was 61.8%.

English version of the report can be downloaded from the IRI.