What question did this study set out to answer?

To clarify the sources of variability and fixed bias in public opinion surveys.

November 28, 1986Science

Assessing the Accuracy of Polls and Surveys

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This review evaluates variability and bias in public opinion surveys, suggesting clearer understanding of data accuracy.

To clarify the sources of variability and fixed bias in public opinion surveys.
Review of different types of surveys and their reported error margins.
Analysis of discrepancies between multiple surveys on the same topics.
Identified several sources of variability that affect survey results.
Highlighted the presence of fixed bias that can mislead consumers of survey data.

Converse et al. (1986) studied this question.

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