Pollster Ratings - Blum & Weprin Associates

Blum & Weprin Associates

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

A/B

Polls analyzed	19
Races called correctly	95%
Most recent cycle	2010
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 22-27	673LV	Governor (TX) General election	Live Phone	Poll Perry (R) +12.0	Actual Perry (R) +12.7	Difference 0.7

2002

Dates	Sample	Race	Methodology	Poll margin	Election margin	Difference
Oct 29-Nov 1	1,002LV	Senate (TX) General election	Live Phone	Poll Cornyn (R) +9.0	Actual Cornyn (R) +12.0	Difference 3.0
Oct 29-Nov 1	1,002LV	Governor (TX) General election	Live Phone	Poll Perry (R) +12.0	Actual Perry (R) +17.8	Difference 5.8
Oct 28-Nov 1	1,052LV	Governor (NY) General election	Live Phone	Poll Pataki (R) +16.0	Actual Pataki (R) +15.9	Difference 0.1
Oct 13-17	600LV	Senate (TX) General election	Live Phone	Poll Cornyn (R) +10.0	Actual Cornyn (R) +12.0	Difference 2.0
Oct 13-17	1,002LV	Governor (TX) General election	Live Phone	Poll Perry (R) +15.0	Actual Perry (R) +17.8	Difference 2.8

2000

Dates	Sample	Race	Methodology	Poll margin	Election margin	Difference
Oct 31-Nov 4	851LV	Senate (NY) General election	Live Phone	Poll Clinton (D) +7.0	Actual Clinton (D) +12.3	Difference 5.3
Oct 31-Nov 4	851LV	President (NY) General election	Live Phone	Poll Gore (D) +20.0	Actual Gore (D) +25.0	Difference 5.0
Oct 30-Nov 3	883LV	Senate (NY) General election	Live Phone	Poll Clinton (D) +7.0	Actual Clinton (D) +12.3	Difference 5.3
Oct 30-Nov 3	883LV	President (NY) General election	Live Phone	Poll Gore (D) +24.0	Actual Gore (D) +25.0	Difference 1.0
Oct 23-25	850LV	Senate (NY) General election	Live Phone	Poll Clinton (D) +7.0	Actual Clinton (D) +12.3	Difference 5.3
Oct 23-25	844LV	President (NY) General election	Live Phone	Poll Gore (D) +24.0	Actual Gore (D) +25.0	Difference 1.0
Feb 27-Mar 3	579LV	President (NY) Republican primary	Live Phone	Poll Bush (R) +8.0	Actual Bush (R) +7.6	Difference 0.4
Feb 27-Mar 3	402LV	President (NY) Democratic primary	Live Phone	Poll Gore (D) +35.0	Actual Gore (D) +32.2	Difference 2.8

1998

Dates	Sample	Race	Methodology	Poll margin	Election margin	Difference
Oct 25-30	662LV	Governor (NY) General election	Live Phone	Poll Pataki (R) +26.0	Actual Pataki (R) +21.2	Difference 4.8
Oct 25-30	662LV	Senate (NY) General election	Live Phone	Poll Schumer (D) +4.0	Actual Schumer (D) +10.5	Difference 6.5
Oct 28	967LV	Governor (TX) General election	Live Phone	Poll Bush (R) +47.0	Actual Bush (R) +37.1	Difference 9.9
Oct 12-13	364LV	Senate (NY) General election	Live Phone	Poll D'Amato (R) +8.0	Actual Schumer (D) +10.5	Difference 18.5
Oct 12-13	364LV	Governor (NY) General election	Live Phone	Poll Pataki (R) +31.0	Actual Pataki (R) +21.2	Difference 9.8