PUBLISHED Mar. 25, 2021, at 10:00 AM

FiveThirtyEight’s Pollster Ratings

Based on the historical accuracy and methodology of each polling organization’s polls.

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Global Strategy Group/National Research (Philadelphia Inquirer)

Pollsters with a relatively small number of polls now receive a provisional rating rather than a precise letter grade.
A/B
Polls analyzed4
Races called correctly100%
Most recent cycle2012
Affiliated with professional polling organization (NCPP/AAPOR/Roper)Yes

How accurate are the polls from Global Strategy Group/National Research (Philadelphia Inquirer)?

Polls conducted within 21 days of an election (based on the poll’s median date) are used to determine the pollster’s grade.

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