The CAGE questionnaire is a series of four questions that doctors can use to check for signs of possible alcohol dependency. The questions are designed to be less obtrusive than directly asking ...

A questionnaire originally developed for patients with lower back pain may be able to help distinguish between different types of orofacial pain. Researchers found that higher scores on the painDETECT ...

I own a market research company, so I understand the importance gathering data from your target audience and using that data in order to make product development, marketing and strategic business ...

In 1886, Antoinette Faure, the daughter of the future French President Félix Faure, asked her childhood friend Marcel Proust to fill out a questionnaire in a book titled “Confessions. An Album to ...

A behind-the-scenes blog about research methods at Pew Research Center. For our latest findings, visit pewresearch.org. One reality of the polling world is item nonresponse — that is, when survey ...