Sampling populations, calculating weighted estimates, and accounting for errors, outliers, and uncertainty are important steps in our work to produce recreational catch statistics. There are two broad ...

The National Sample Survey, under the Ministry of Statistics and Programme Implementation, has been conducting large-scale sample surveys on All-India basis since the 1950s. These surveys are the most ...

Suggested Citation: "3 Sample Surveys: Overview, Examples, and Usefulness in Studying Aviation Safety." National Research Council. 2009. An Assessment of NASA's National Aviation Operations Monitoring ...

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 ...

Measuring the identity of Taiwanese Americans, and Asian origin groups in the United States more generally, is a challenging endeavor, whether in survey research or when trying to generate estimates ...

Market research surveys are used to gather information about customers or potential customers for your company. These surveys can help you to make the most profitable decisions about marketing, ...

Wondering how many people in the United States have a smartphone? If you poll 20 people on the street, your survey won’t be representative of the entire American population. But if you just want to ...

After a 72-year wait required by law, the National Archives has released individual records from the 1940 Census, opening a gold mine for people researching their family histories. But the 1940 Census ...

Research studies, opinion polls and surveys all rely on asking a number of people about something to try to extract some pattern of behaviour or predict a result. But how many people do you need to ...