The 1940 Census was notable in the history of census-taking because it was the first in which some questions were asked of sample of Americans. This change enabled the Census Bureau to add questions ...

This Pew Research Center explainer provides an overview of different methods of surveying small populations in the United States. The data is drawn from a variety of sources. Findings about the ...

Market questionnaires are a form of quantitative, primary market research that can provide small business owners with specific information about their customers’ needs. Whether conducted over ...

A new national survey revealed that the average American experiences 252 good days each year — but some states are feeling ...

This issue of Bioanalysis focuses on incurred sample reanalysis (ISR), with the aim of providing some examples of ISR failures and the ensuing investigations, to provide a greater shared experience.

The value of strong questionnaire design, complemented by the task of high-quality sample development, is not fully appreciated. Too often researchers relegate those two essential building blocks of ...

A new study offers a stark reminder of how pervasive cell phone use while driving is for young people, as findings ...

Fred Hutch's Nutrition Assessment shared resource (NASR) provides comprehensive support to investigators who include dietary assessment in their research protocols. Nutritional epidemiologists at Fred ...

Research question 2. The Mann–Whitney U -test (two tailed) was used to test for differences between the Swedish developmental sample 24 versus the four community samples.