Validating 2020 voters in Pew Research Center’s survey data
Surveys that ask about voting can be made more accurate by validating respondents’ self-reported turnout with official voting records.
Numbers, Facts and Trends Shaping Your World
Polling in different parts of the world can be very challenging, because what works in one country may not work in a different country.
How does the way a poll is conducted influence the answers people give?