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 ...

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, ...

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 ...

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 ...

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 ...

You’ve probably been on the receiving end of a bad survey. Maybe it asked you to rate a delivery you never received. Or it forced you to choose between three irrelevant response options, none of which ...

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 ...