B/C
| Polls analyzed | 14 |
| Races called correctly | 86% |
| Most recent cycle | 2016 |
| Affiliated with professional polling organization (NCPP/AAPOR/Roper) | No |
How accurate are the polls from DHM Research?
Polls conducted within 21 days of an election (based on the poll’s median date) are used to determine the pollster’s grade.
2016
Key
A = Adults
RV = Registered voters
V = Voters
LV = Likely voters
| Dates | Sample | Race | Methodology | Poll margin | Election margin | Difference |
|---|---|---|---|---|---|---|
| Oct 25-29 | 504LV | President (OR) General election | Live Phone | Poll Clinton (D) +7.0 | Actual Clinton (D) +11.0 | Difference 4.0 |
| Oct 25-29 | 504LV | Governor (OR) Special election | Live Phone | Poll Brown (D) +9.0 | Actual Brown (D) +7.2 | Difference 1.8 |
| May 6-9 | 304LV | President (OR) Democratic primary | Live Phone | Poll Clinton (D) +15.0 | Actual Sanders (D) +14.2 | Difference 29.2 |
2012
| Dates | Sample | Race | Methodology | Poll margin | Election margin | Difference |
|---|---|---|---|---|---|---|
| Oct 26-28 | 500LV | President (OR) General election | Live Phone | Poll Obama (D) +7.0 | Actual Obama (D) +12.1 | Difference 5.1 |
2010
| Dates | Sample | Race | Methodology | Poll margin | Election margin | Difference |
|---|---|---|---|---|---|---|
| Oct 30-31 | 1,000LV | Governor (OR) General election | Live Phone | Poll Kitzhaber (D) +3.0 | Actual Kitzhaber (D) +1.5 | Difference 1.5 |
| Oct 24-25 | 500LV | Governor (OR) General election | Live Phone | Poll Dudley (R) +3.0 | Actual Kitzhaber (D) +1.5 | Difference 4.5 |
2008
| Dates | Sample | Race | Methodology | Poll margin | Election margin | Difference |
|---|---|---|---|---|---|---|
| Oct 23-25 | 500RV | President (OR) General election | Live Phone | Poll Obama (D) +19.0 | Actual Obama (D) +16.3 | Difference 2.7 |
| Oct 23-25 | 500RV | Senate (OR) General election | Live Phone | Poll Merkley (D) +5.0 | Actual Merkley (D) +3.4 | Difference 1.6 |
| May 8-10 | 400LV | President (OR) Democratic primary | Live Phone | Poll Obama (D) +20.0 | Actual Obama (D) +18.0 | Difference 2.0 |
2006
| Dates | Sample | Race | Methodology | Poll margin | Election margin | Difference |
|---|---|---|---|---|---|---|
| Oct 28-31 | 600LV | Governor (OR) General election | Live Phone | Poll Kulongoski (D) +7.0 | Actual Kulongoski (D) +8.0 | Difference 1.0 |
2004
| Dates | Sample | Race | Methodology | Poll margin | Election margin | Difference |
|---|---|---|---|---|---|---|
| Oct 25-27 | 608RV | President (OR) General election | Live Phone | Poll Kerry (D) +6.0 | Actual Kerry (D) +4.2 | Difference 1.8 |
2002
| Dates | Sample | Race | Methodology | Poll margin | Election margin | Difference |
|---|---|---|---|---|---|---|
| Oct 25-29 | 608LV | Senate (OR) General election | Live Phone | Poll Smith (R) +19.0 | Actual Smith (R) +16.6 | Difference 2.4 |
| Oct 25-29 | 608LV | Governor (OR) General election | Live Phone | Poll Kulongoski (D) +6.0 | Actual Kulongoski (D) +2.9 | Difference 3.1 |
2000
| Dates | Sample | Race | Methodology | Poll margin | Election margin | Difference |
|---|---|---|---|---|---|---|
| Oct 24-30 | 600LV | President (OR) General election | Live Phone | Poll Gore (D) +1.0 | Actual Gore (D) +0.4 | Difference 0.6 |
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