The nuts and bolts of our public opinion surveys. A summary of ABC News' polling standards and survey methodology follows. ABC News maintains standards for disclosure, validity, reliability and ...

Suggested Citation: "5 Sampling and Estimation." National Academies of Sciences, Engineering, and Medicine. 2018. Reengineering the Census Bureau's Annual Economic Surveys. Washington, DC: The ...

One possible explanation for the variability in estimates across the different nonprobability samples is the range of methods that online sample vendors employ. They differ on recruitment, weighting ...

Results for this study are based on telephone interviews conducted by SSRS, an independent research company, among a nationally representative sample of 1,520 Latino respondents ages 18 and older. It ...

The method of systematic random sampling (METHOD=SYS) selects units at a fixed interval throughout the sampling frame or stratum after a random start. PROC SURVEYSELECT chooses the first unit randomly ...

There was controversy recently over how sound data collection procedures in India are, especially when it comes to some of the important national level surveys. An article (by Shamika Ravi, Member of ...