Note: This report was updated on Dec. 30, 2015 to reflect the January-July 2015 National Health Interview Survey estimates released on December 1, 2015. Telephone surveys face numerous challenges, but ...

Data was also drawn from other interviews from prior and subsequent waves with this same set of respondents (see “Linking the typology survey to data from other ATP waves” for additional details). The ...

A sample must additionally be designed to provide sufficient precision (low sampling variance) to meet the survey aims. Sample size is a key driver of precision, but not the only one. The choice of ...

Millions of businesses rely on customer surveys to learn more about their customer base, their products, and their options for the future. Aspiring entrepreneurs use them for initial market research ...

Official household surveys are important sources of information: they support policy and decision-making for a wide range of government programs. The uses of household survey data are broad, from ...

Survey sampling is a technique used to collect information or data from a larger population. The main goal of survey sampling is to gather accurate information about a population without studying ...

Adam Hayes, Ph.D., CFA, is a financial writer with 15+ years Wall Street experience as a derivatives trader. Besides his extensive derivative trading expertise, Adam is an expert in economics and ...

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 ...