Pollster Ratings - National Journal

National Journal

Pollsters with a relatively small number of polls now receive a provisional rating rather than a precise letter grade.

A/B

Polls analyzed	12
Races called correctly	100%
Most recent cycle	2008
Affiliated with professional polling organization (NCPP/AAPOR/Roper)	Yes

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

Key

A = Adults

RV = Registered voters

V = Voters

LV = Likely voters

Dates	Sample	Race	Methodology	Poll margin	Election margin	Difference
Oct 23-27	402RV	President (NC) General election	Live Phone	Poll Obama (D) +4.0	Actual Obama (D) +0.3	Difference 3.7
Oct 23-27	408RV	President (FL) General election	Live Phone	Poll Obama (D) +1.0	Actual Obama (D) +2.8	Difference 1.8
Oct 23-27	409RV	President (CO) General election	Live Phone	Poll Obama (D) +4.0	Actual Obama (D) +9.0	Difference 5.0
Oct 23-27	404RV	Senate (VA) General election	Live Phone	Poll Warner (D) +29.0	Actual Warner (D) +31.3	Difference 2.3
Oct 23-27	402RV	Senate (NC) General election	Live Phone	Poll Hagan (D) +2.0	Actual Hagan (D) +8.5	Difference 6.5
Oct 23-27	409RV	Senate (CO) General election	Live Phone	Poll Udall (D) +15.0	Actual Udall (D) +10.3	Difference 4.7
Oct 23-27	404RV	President (VA) General election	Live Phone	Poll Obama (D) +4.0	Actual Obama (D) +6.3	Difference 2.3
Oct 23-27	404RV	President (OH) General election	Live Phone	Poll Obama (D) +7.0	Actual Obama (D) +4.6	Difference 2.4
Oct 16-20	402RV	President (MN) General election	Live Phone	Poll Obama (D) +10.0	Actual Obama (D) +10.2	Difference 0.2
Oct 16-20	412RV	President (PA) General election	Live Phone	Poll Obama (D) +10.0	Actual Obama (D) +10.3	Difference 0.3
Oct 16-20	402RV	Senate (MN) General election	Live Phone	Poll Franken (D) +1.0	Actual Franken (D) +0.0	Difference 1.0
Oct 16-20	405RV	President (WI) General election	Live Phone	Poll Obama (D) +13.0	Actual Obama (D) +13.9	Difference 0.9