Polls analyzed | 22 |
Races called correctly | 93% |
Most recent cycle | 2016 |
Affiliated with professional polling organization (NCPP/AAPOR/Roper) | Yes |
How accurate are the polls from Columbus Dispatch?
2016
Key
A = Adults
RV = Registered voters
V = Voters
LV = Likely voters
Dates | Sample | Race | Methodology | Poll margin | Election margin | Difference |
---|---|---|---|---|---|---|
Oct 27-Nov 5 | 1,151LV | President (OH) General election | Poll Clinton (D) +1.0 | Actual Trump (R) +8.1 | Difference 9.1 | |
Oct 27-Nov 5 | 1,151LV | Senate (OH) General election | Poll Portman (R) +21.0 | Actual Portman (R) +20.9 | Difference 0.1 |
2014
Dates | Sample | Race | Methodology | Poll margin | Election margin | Difference |
---|---|---|---|---|---|---|
Oct 22-31 | 1,009LV | Governor (OH) General election | Poll Kasich (R) +28.0 | Actual Kasich (R) +30.6 | Difference 2.6 |
2012
Dates | Sample | Race | Methodology | Poll margin | Election margin | Difference |
---|---|---|---|---|---|---|
Oct 24-Nov 2 | 1,501LV | Senate (OH) General election | Poll Brown (D) +6.0 | Actual Brown (D) +6.0 | Difference 0.0 | |
Oct 24-Nov 2 | 1,501LV | President (OH) General election | Poll Obama (D) +2.0 | Actual Obama (D) +3.0 | Difference 1.0 |
2010
Dates | Sample | Race | Methodology | Poll margin | Election margin | Difference |
---|---|---|---|---|---|---|
Oct 20-29 | 1,445LV | Senate (OH) General election | Poll Portman (R) +16.0 | Actual Portman (R) +17.4 | Difference 1.4 | |
Oct 20-29 | 1,445LV | Governor (OH) General election | Poll Kasich (R) +2.0 | Actual Kasich (R) +2.0 | Difference 0.0 |
2008
Dates | Sample | Race | Methodology | Poll margin | Election margin | Difference |
---|---|---|---|---|---|---|
Oct 22-31 | 2,164LV | President (OH) General election | Poll Obama (D) +6.0 | Actual Obama (D) +4.6 | Difference 1.4 | |
Feb 21-29 | 2,082RV | President (OH) Republican primary | Poll McCain (R) +40.0 | Actual McCain (R) +22.2 | Difference 17.8 | |
Feb 21-29 | 2,308RV | President (OH) Democratic primary | Poll Clinton (D) +16.0 | Actual Clinton (D) +8.7 | Difference 7.3 |
2006
Dates | Sample | Race | Methodology | Poll margin | Election margin | Difference |
---|---|---|---|---|---|---|
Oct 24-Nov 3 | 1,541RV | Governor (OH) General election | Poll Strickland (D) +36.0 | Actual Strickland (D) +23.9 | Difference 12.1 | |
Oct 24-Nov 3 | 1,541RV | Senate (OH) General election | Poll Brown (D) +24.0 | Actual Brown (D) +12.3 | Difference 11.7 |
2004
Dates | Sample | Race | Methodology | Poll margin | Election margin | Difference |
---|---|---|---|---|---|---|
Oct 20-29 | 2,880LV | Senate (OH) General election | Poll Voinovich (R) +24.0 | Actual Voinovich (R) +27.7 | Difference 3.7 | |
Oct 20-29 | 2,880LV | President (OH) General election | Poll Even | Actual Bush (R) +2.1 | Difference 2.1 | |
Feb 19-27 | 3,793RV | President (OH) Democratic primary | Poll Kerry (D) +31.0 | Actual Kerry (D) +17.7 | Difference 13.3 |
2002
Dates | Sample | Race | Methodology | Poll margin | Election margin | Difference |
---|---|---|---|---|---|---|
Oct 24-31 | 2,048LV | Governor (OH) General election | Poll Taft (R) +18.0 | Actual Taft (R) +19.5 | Difference 1.5 |
2000
Dates | Sample | Race | Methodology | Poll margin | Election margin | Difference |
---|---|---|---|---|---|---|
Oct 27-Nov 3 | 2,050LV | President (OH) General election | Poll Bush (R) +10.0 | Actual Bush (R) +3.5 | Difference 6.5 | |
Oct 27-Nov 3 | 2,050LV | Senate (OH) General election | Poll DeWine (R) +27.0 | Actual DeWine (R) +24.1 | Difference 2.9 | |
Feb 25-Mar 4 | 3,714RV | President (OH) Republican primary | Poll Bush (R) +28.0 | Actual Bush (R) +21.0 | Difference 7.0 | |
Feb 25-Mar 4 | 2,892RV | President (OH) Democratic primary | Poll Gore (D) +47.0 | Actual Gore (D) +48.9 | Difference 1.9 |
1998
Dates | Sample | Race | Methodology | Poll margin | Election margin | Difference |
---|---|---|---|---|---|---|
Oct 27 | 800LV | Senate (OH) General election | Poll Voinovich (R) +2.0 | Actual Voinovich (R) +12.9 | Difference 10.9 | |
Oct 27 | 800LV | Governor (OH) General election | Poll Taft (R) +1.0 | Actual Taft (R) +5.4 | Difference 4.4 |
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