KIIS conducted nationwide poll during the period of May 23 — June 1, 2012. 2042 respondents were interviewed face-to-face; the survey covered all the regions of Ukraine (including the city of Kyiv) and Crimea; sample was random and representative for the population of Ukraine aged 18 years and older.

Kyiv International Institute of Sociology (KIIS) conducted a nationwide opinion poll during the period of April 12–23, 2012. 2038 respondents were interviewed; the survey covered all regions of Ukraine (including the city of Kyiv) and the Autonomous Republic of Crimea; sample was random and representative for the population of Ukraine aged 18 years and older.

Kyiv International Institute of Sociology (KIIS) conducted a nationwide opinion poll during the period of April 21 to May 2, 2012. 1636 respondents were interviewed; the survey covered all regions of Ukraine (including the city of Kyiv) and Crimea; sample was random and representative for the population of Ukraine aged 16 years and above.

Kyiv International Institute of Sociology (KIIS) conducted a nationwide opinion poll during the period of April 21 to May 2, 2012. 1636 respondents were interviewed; the survey covered all regions of Ukraine (including the city of Kyiv) and Crimea; sample was random and representative for the population of Ukraine aged 16 years and above.

KIIS conducted nationwide poll during the period of April 14–26, 2012. 2038 respondents were interviewed; the survey covered all regions of Ukraine (including the city of Kyiv) and Crimea; sample was random and representative for the population of Ukraine aged 18 years and older.

The survey — unlike the one, which was conducted during the period of April 12–24 by KIIS — was performed with the party lists, where UNC "Batkivschyna" and the Party "Front of Changes" were already united into one political force.