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Frequently asked questions (FAQ)

What is the Public Opinion Research Centre and how is its research funded?

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How accurate are survey estimates? Sampling error and non-sampling error

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How does the Public Opinion Research Centre select respondents?

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Is 1000 respondents enough?

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Why are data sometimes weighted?

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What do we have to be careful about when interpreting the results of public opinion research?

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What are party preferences, voter preferences, and likely voter model?

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Does the likely voter model predict the results of an election?

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How accurate are survey estimates? Sampling error and non-sampling error

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