Äîñë³äæåííÿ, ïðî ÿêå éäåòüñÿ, ïðîâîäèòüñÿ àñîö³àö³ºþ íåçàëåæíèõ äîñë³äíèöüêèõ àãåíòñòâGallup International ç 1947 ðîêó â 42 êðà¿íàõ ñâ³òó, çîêðåìà ïåâíèé ÷àñ ³ â Óêðà¿í³. Íà óñüîìó ïîñòðàäÿíñüêîìó ïðîñòîð³ ïðåäñòàâíèêîì ö³º¿ àñîö³àö³¿ º äîñë³äíèöüêèé õîëäèíã Ðîìèð, à â Óêðà¿í³  â öüîìó ðîö³ öå äîñë³äæåííÿ ïðîâ³â Êè¿âñüêèé ì³æíàðîäíèé ³íñòèòóò ñîö³îëî㳿 (Ê̲Ñ) ñï³ëüíî ç Ôîíäîì «Äåìîêðàòè÷í³ ³í³ö³àòèâè».   öüîìó äîñë³äæåíí³ ³íäåêñ ùàñòÿ ðîçðàõîâóºòüñÿ ÿê â³äñîòîê òèõ, õòî ââàæຠñåáå ùàñëèâèì, ì³íóñ â³äñîòîê òèõ, õòî ââàæຠñåáå íåùàñëèâèì.

Çàãàëîì, íàéá³ëüøå ðåñïîíäåíò³â äîâ³ðÿþòü Â. Çåëåíñüêîìó (32,8% äîâ³ðÿþòü ³ 59,6% íå äîâ³ðÿþòü, áàëàíñ äîâ³ðè-íåäîâ³ðè ñòàíîâèòü -26,8%), Â. Êëè÷êó (31,8% ïðîòè 54,3%, áàëàíñ – -22,5%), Ä. Ðàçóìêîâó (29,2% ïðîòè 36,5%, áàëàíñ – -7,3%), Þ. Áîéêó (25,8% ïðîòè 50,9%, áàëàíñ – -25,1%), Â. Ãðîéñìàíó (25,4% ïðîòè 62,2%, áàëàíñ – -36,8%), Ñ. Ïðèòóë³ (25,3% ïðîòè 42%, áàëàíñ – -16,7%).

Ó ïåðø³é ïîëîâèí³ ãðóäíÿ 2020 ðîêó Êè¿âñüêèé ì³æíàðîäíèé ³íñòèòóò ñîö³îëî㳿 ñï³ëüíî ç Ôîíäîì «Äåìîêðàòè÷í³ ³í³ö³àòèâè» ïðîâåëè åêñïåðèìåíò ç ïîð³âíÿííÿ ðåéòèíã³â ïàðò³é, îòðèìàíèõ ìåòîäîì îñîáèñòèõ ³íòåðâ’þ (äîñë³äæåííÿ, ïðîâåäåíå ÊÌ²Ñ íà çàìîâëåííÿ Ôîíäó) ³ ìåòîäîì òåëåôîííèõ ³íòåðâ’þ (âëàñíå äîñë³äæåííÿ Ê̲Ñ, Îìí³áóñ). Îáèäâà îïèòóâàííÿ áóëè îäíàêîâèìè çà îáñÿãîì âèá³ðêè (ïî 2000 ðåñïîíäåíò³â), âèêîðèñòîâóâàëè îäíàêîâå ôîðìóëþâàííÿ çàïèòàííÿ ³ îäíàêîâèé ñïèñîê ïàðò³é.  îáîõ âèïàäêàõ çàïèòàííÿ éøëî ïåðøèì â àíêåò³, òîáòî âèêëþ÷àâñÿ âïëèâ ³íøèõ çàïèòàíü, à òàêîæ îïèòóâàííÿ ïðîâîäèëèñÿ ïðàêòè÷íî â òîé ñàìèé ïåð³îä: îïèòóâàííÿ ìåòîäîì îñîáèñòèõ ³íòåðâ’þ áóëî ïðîâåäåíå 5-13 ãðóäíÿ, îïèòóâàííÿ ìåòîäîì òåëåôîííèõ ³íòåðâ’þ – 4-8 ãðóäíÿ. ªäèíà â³äì³íí³ñòü: îïèòóâàííÿ äëÿ Ôîíäó «Äåìîêðàòè÷íèõ ³í³ö³àòèâ» ïðîâîäèëîñÿ ìåòîäîì îñîáèñòèõ ³íòåðâ’þ íà îñíîâ³ âèïàäêîâî¿ âèá³ðêè íà ïåðøèõ ñòóïåíÿõ â³äáîðó ç êâîòíèì â³äáîðîì íà îñòàííüîìó ñòóïåí³. Îïèòóâàííÿ ÊÌ²Ñ – íà îñíîâí³ âèá³ðêè âèïàäêîâî¿ ãåíåðàö³¿ ìîá³ëüíèõ íîìåð³â (òîáòî âèïàäêîâî ãåíåðóþòüñÿ ìîá³ëüí³ íîìåðè, à íå â³äáèðàþòüñÿ ç ïåâíî¿ áàçè) áåç äîäàòêîâèõ êâîò, ç ëèøå îïèòóâàííÿì îñ³á, ùî äîñÿãëè 18 ðîê³â ³ ñòàðøå ³ ïðîæèâàþòü íà òåðèòî𳿠Óêðà¿íè.

Ó Ëóãàíñüê³é ³ Äîíåöüê³é îáëàñòÿõ îïèòóâàííÿ ïðîâîäèëîñÿ ò³ëüêè íà òåðèòîð³¿, ùî êîíòðîëþºòüñÿ óêðà¿íñüêîþ âëàäîþ.

Ñòàòèñòè÷íà ïîõèáêà âèá³ðêè (ç ³ìîâ³ðí³ñòþ 0,95 ³ çà äèçàéí–åôåêòó 1,5) íå ïåðåâèùóº: 3,3% äëÿ ïîêàçíèê³â áëèçüêèõ äî 50%, 2,8% — äëÿ ïîêàçíèê³â áëèçüêèõ äî 25%, 2,0% — äëÿ ïîêàçíèê³â áëèçüêèõ äî 10%, 1,4% — äëÿ ïîêàçíèê³â áëèçüêèõ äî 5%.

On November 15, 2020, the day of the second round of the mayoral election, the Kyiv International Institute of Sociology (KIIS) held an exit poll in Odesa. The general set of exit poll is voters who voted at polling stations in the city of Odesa (except for special polling stations - hospitals, prisons, military units, etc.). The sample is representative of the city as a whole. As of 8 pm, 2,126 respondents were polled at 40 polling stations. The method of "secret ballot" was used. The reach rate (the number of voters who agreed to take part in the poll) is 65.9%. The sampling error should not exceed 3-4%.

On November 15, 2020, the day of the second round of the mayoral election, the Kyiv International Institute of Sociology (KIIS) held an exit poll in Odesa. The general set of exit poll is voters who voted at polling stations in the city of Odesa (except for special polling stations - hospitals, prisons, military units, etc.). The sample is representative of the city as a whole. As of 5 pm, 1,780 respondents were polled at 40 polling stations. The method of "secret ballot" was used. The reach rate (the number of voters who agreed to take part in the poll) is 66.6%. The sampling error should not exceed 3-4%.