Why public opinion polls don’t include the same number of Republicans and Democrats
While the notion that polls should include equal numbers of Republicans and Democrats makes some sense, it’s based on a misunderstanding of what polling is intended to do.
Why survey estimates of the number of Americans online don’t always agree
How many U.S. adults use the internet? There are a lot of sources with answers to this question. Yet these different sources can be tricky to reconcile.
Methods 101 Video: How is polling done around the world?
Polling in different parts of the world can be very challenging, because what works in one country may not work in a different country.
How is polling done around the world?
The Center conducts polls in many countries other than the U.S. – but the methodology behind our international surveys can vary.
Measuring illegal immigration: How Pew Research Center counts unauthorized immigrants in the U.S.
Jeffrey S. Passel, senior demographer, on the research techniques used to derive the unauthorized immigrant population estimate in the U.S. and the challenges involved.
When Online Survey Respondents Only ‘Select Some That Apply’
when designing an online survey questionnaire, there is more than one way to ask a respondent to select which options in a series applies to them.
Q&A: Why and how we expanded our American Trends Panel to play a bigger role in our U.S. surveys
Nick Bertoni, manager of the American Trends Panel, explains how the panel works and what its recent expansion means for our future survey work.
Growing and Improving Pew Research Center’s American Trends Panel
Pew Research Center’s American Trends Panel (ATP) is now the Center’s principal source of data for U.S. public opinion research.
Response rates in telephone surveys have resumed their decline
Response rates to telephone public opinion polls conducted by Pew Research Center have resumed their decline, to 7% in 2017 and 6% in 2018.
What our transition to online polling means for decades of phone survey trends
What does the migration to online polling mean for the country's trove of public opinion data gathered over the past four decades?
