Nick Hatley

Former Research Analyst

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.

report | Apr 8, 2021

Confronting 2016 and 2020 Polling Limitations

Looking at final estimates of the outcome of the 2020 U.S. presidential race, 93% of national polls overstated the Democratic candidate’s support among voters, while nearly as many (88%) did so in 2016.

report | Aug 18, 2020

A Resource for State Preelection Polling

If a battleground state poll does not adjust for having too many college graduates, it is at risk of overstating support for a Democratic presidential candidate. The Current Population Survey provides high-quality data that can mitigate overrepresentation of college graduates.

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