In 1997 questionnaire research was viewed by many scientists (including myself) as soft science and an “easy way to a quick publication”. The principles underlying high quality questionnaire research ...

If you want to better understand your customers, you may find yourself thinking about putting together a short questionnaire. You might, for example, want to know how satisfied your customers are with ...

Empirical research requires good data to complement statistical rigor in providing answers to global poverty questions. Poor data quality can lead to biases in causal inference, lower the probability ...

Data from mixed-mode questions are hard, if not impossible, to interpret accurately. The first part of this article will give an example of a mixed-mode question and an analysis of how to interpret ...

Questionnaires are widely used for data collection in health research and evaluation. Their design, use and analysis are key to accurate, comprehensive and complete data. This course is an ...

A behind-the-scenes blog about research methods at Pew Research Center. For our latest findings, visit pewresearch.org. Pew Research Center conducts surveys all around the world on a variety of topics ...

Pew Research Center regularly conducts public opinion surveys in countries outside the United States as part of its ongoing exploration of attitudes, values and behaviors around the globe. To date, ...