In this article, I focus specifically on the methodology, and more particularly, the sampling method: how were the 1,556 respondents distributed across Banjul, Kanifing, Brikama, Kerewan, Mansakonko, ...

A new telephone survey experiment finds that, despite major structural differences, an opinion poll drawn from a commercial voter file can produce results similar to those from a sample based on ...

Detailed information on Pew Research Center international survey methodology, such as mode of interview, sampling design, margin of error, and design effect, for each country we survey, organized by ...

Targeting matters most. Surveying the wrong audience can lead to misleading data and poor decisions, even if the questions themselves are solid. Weighting shapes reality. Overrepresenting certain ...

Rotating Random Number Sampling is proposed as a flexible method to evenly distribute survey burden caused by a set of business surveys over enterprises without requiring aligned stratifications. The ...

The pre-module is a quick reference guide, focusing on the practical steps for conducting a SENS survey. It is not meant to replace already existing survey manuals. To avoid duplication, the user is ...

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 ...