Behind the Scenes of Israel's Election Exit Polls: Algorithms, Deception, and Countdown
Israel's Channel 12 will broadcast its election exit poll tonight at 10 PM, based on data from 70 selected polling stations. The Gevei Institute uses a statistical model and a behavioral algorithm to predict results, accounting for potential voter deception. Initial results will be updated throughout the night with actual vote counts from the sampled stations.
הידיעה ב-5 שורות · תקציר של baba
- Exit polls, unlike regular polls, ask voters to recall their actual ballot choice.
- 70 polling stations were statistically selected nationwide to represent the overall vote.
- A proprietary behavioral model, using AI, attempts to correct for voters who misreport their vote.
- Initial exit poll results will be released at 10 PM, with updates throughout the night.
- The Gevei Institute's exit poll process has become more challenging due to voter deception.
Israel's pivotal election day culminates tonight at 10 PM with the broadcast of exit poll results on Channel 12. The process involves selecting 70 specific polling stations nationwide, chosen through a statistical model developed by Mano Geva to best reflect national voting patterns. Dummy polling stations are set up near these real ones, where voters are approached after casting their ballots and asked to anonymously replicate their vote using a tablet.
Exit polls differ from regular polls, which gauge current voting intentions. Exit polls ask those who have already voted to recall their choice, aiming to predict the election outcome. Adi Geva, Deputy Director of the Gevei Institute, explained that while regular polls offer a snapshot, exit polls capture actual votes, though last-minute shifts can still occur.
The Gevei Institute collects data for regular polls via phone interviews and online questionnaires, employing stratified sampling to ensure accurate representation of various demographics like the Arab community, Haredim, and new immigrants. A standard poll involves 500 respondents with a maximum sampling error of 4.4%.
To ensure accuracy, the institute uses a system to detect contradictory answers, removing inconsistent respondents. However, the process is complicated by voters who may not accurately report their vote in the exit poll. The institute employs a proprietary behavioral model, enhanced by AI and technology, to correct for these "lies" and biases, a challenge that Geva admits has become more difficult since 2019.
Initial results are broadcast immediately after polls close at 10 PM, but these do not include votes from the final 45-75 minutes of voting. As the night progresses, actual results from the sampled polling stations are integrated, gradually refining the exit poll numbers. Channel 12 will provide live coverage throughout the night, featuring updated results, field reports, analysis, and scenarios for government formation.
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