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.

KIIS conducted nationwide poll during the period of April 12–24, 2012. 2040 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 yearsand older.