Numbers, Facts and Trends Shaping Your World


Methods & Innovation

A quarterly digest of the Center’s latest methodological research and data science discoveries · Subscribe ↗


Exploring our mixed-methods work

“At Pew Research Center, we use a wide-ranging toolkit – including surveys, qualitative research and computational methods – to explore big questions in innovative ways.”

Aaron Smith
Director of Data Labs

Behind Trump’s 2024 victory, a more racially and ethnically diverse voter coalition

The Center’s recent report on voter turnout and voting preferences in the 2024 presidential election finds that Trump won with a voter coalition that was more racially and ethnically diverse than in 2020 or 2016.  

To conduct the analysis, we surveyed 8,942 U.S. adults who are members of our nationally representative American Trends Panel (ATP). We verified turnout using commercial voter files that aggregate publicly available state records. By surveying the same validated voters over time, we can more clearly see how differences in who turns out to vote – and who stays home – impacts each election.

Now available: 2025 National Public Opinion Reference Survey benchmarking data

In 2020, Pew Research Center launched the National Public Opinion Reference Survey (NPORS), an annual, cross-sectional survey of U.S. adults used to produce benchmark estimates on Americans’ political affiliation, religious affiliation and internet use.  

NPORS respondents can take the survey on paper, online or over the phone, and they are selected using address-based sampling from the U.S. Postal Service’s Computerized Delivery Sequence File. The 2025 NPORS was fielded Feb. 5-June 18, 2025, among 5,022 U.S. adults, with a 29% response rate.  

What is (and isn’t) news?

A recent unique Pew Research Center report from the Pew-Knight Initiative uses a multimethod approach to explore the question: What is “news” to Americans – and what isn’t? The project includes three different research components: an online discussion board where 57 U.S. adults shared opinions, engaged with multimedia activities and responded to posted topics; a nationally representative survey of almost 9,500 U.S. adults conducted through the Center’s American Trends Panel; and a series of individual on-the-record, in-depth interviews from July 18 to Sept. 6, 2024, with 13 journalists and editors exploring their perspectives on audiences’ understandings of news, as well as how these shifts are impacting news organizations. 

AI in Americans’ web browsing

Amid the growing presence of artificial intelligence, we studied Americans’ exposure to AI-related tools and content as they go about their daily online lives. As part of a new approach, we purchased the March 2025 web browsing data of 900 U.S. adults. Each respondent is a member of KnowledgePanel Digital, an online survey panel whose respondents agree to install an app that tracks their online browsing behavior. 

Pew Research Center makes its data available to the public for secondary analysis after a period of time. All of the Center’s available datasets can be downloaded here, and select datasets follow. Contact us at info@pewresearch.org with any questions.

2025 National Public Opinion Reference Survey (NPORS)
Survey of 5,022 U.S. adults conducted Feb. 5-June 18, 2025, via web, paper and phone.

Dataset of Global Religious Composition Estimates for 2010 and 2020
This dataset is based on more than 2,700 sources, including national censuses, large-scale demographic surveys, general population surveys and population registers.

Spring Spring 2024 Survey Data
Nationally representative surveys of 35 countries conducted May 13-19, 2024.

American Trends Panel Wave 151
Survey of 9,201 U.S. adults conducted Aug. 5-11, 2024, emphasizing topics related to immigration.

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