report | Aug 25, 2021

How Call-In Options Affect Address-Based Web Surveys

One method to improve survey representation of the non-internet and less literate population is to allow people to take surveys offline. In March, we fielded a study to test the feasibility and effect of collecting data through respondent-initiated interactive voice response; here’s what we found.

report | Jun 9, 2021

Measuring the Risks of Panel Conditioning in Survey Research

A new evaluation of the Center's national American Trends Panel finds little evidence that panel estimates are affected by errors associated with panel conditioning, a phenomenon that occurs when survey participation changes respondents’ true or reported behavior over time.

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Signature Reports

report | Nov 19, 2019

A Field Guide to Polling: Election 2020 Edition

While survey research in the United States is a year-round undertaking, the public’s focus on polling is never more intense than during the run-up to a presidential election.

report | Mar 31, 2017

Are Telephone Polls Understating Support for Trump?

An experiment comparing responses to 27 questions fielded on both a telephone and a web survey found no significant mode differences in overall opinion about Trump or many of his signature policy positions.