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Exit Poll Results 2019: News18-IPSOS survey methodology for Lok Sabha elections 2019

Total 1,21,542 voters were interviewed from 199 Lok Sabha constituency for the News18 exit poll conducted by IPSOS.

May 19, 2019 / 05:01 PM IST

All eyes are now on 2019 Lok Sabha election exit poll results. Counting of votes will happen on May 23.

The News18 exit poll has been conducted by IPSOS.

Here’s how the survey was conducted:

To envisage the number of seats likely to be won by each of the Political Parties (or alliances) contesting the general election, total 199 Parliamentary Constituency were selected out of 543 constituencies across 28 states of India.

Within the parliamentary constituencies, 796 assembly constituencies were selected, and then 4776 individual polling station areas were selected for conducting interviews. In each polling station, around 25 voters were randomly selected depending on the terrain and voter turnouts in that particular polling station.

Close

Total 1,21,542 voters were interviewed from 199 parliamentary constituency.

For selection of PC, AC and PS, multistage sampling process was adopted.

News18-IPSOS Exit Poll Methodology News18-IPSOS Exit Poll Methodology

Stage 1: Selection of PCs was done considering past election results at the parliamentary constituency level like –

> Constituencies where a party has not lost an election in the past two / three elections
> Constituencies where the winning margin is low
> Constituencies which flip-flop election to election

> Constituencies that have “heavy weight” candidates

Stage 2: Four to six assembly constituencies were selected in each parliamentary constituency using systematic random sampling (SRS) process.

Stage 3: In each assembly constituency, 6 polling stations were selected using systematic random sampling (SRS) process.

Stage 4: Voters were randomly selected outside the polling station. Every third voter coming out after casting vote were selected.

Survey was conducted on the election day in all seven phases of the polling. The interviewing process starts when the polls open and continues throughout the day until polls close to ensure better representation of the voters, coming in at different time cluster for voting.

Each polling booth was covered for one hour, by three interviewers. They then moved to next polling booth. All interviews were conducted using Computer-assisted personal interviewing (CAPI) devices.

To overcome prejudice/response bias, election symbol including party name of key parties contesting in respective constituency were shown in one screen, without being the screen gets scrolled.

When asking the voting related question, a virtual polling booth scenario was created, wherein we hand over the data capturing device to respondent on which they were allowed to mark the party, they had voted for.

The questionnaire was translated into vernacular language which is mainly spoken in the respondents’ State.

Data were weighted to reflect the constituency profile on age, gender, caste, religion and voter turnout.

Lok Sabha polls: For the latest updates, analysis and opinions, click here
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