Dittman Research
Historical accuracy is measured against certified results. Current-cycle records come from the canonical, deduplicated archive and do not by themselves change the sealed forecast.
- Historical polls
- 9
- Mean absolute error
- 3.44percentage points
- Historical bias
- D+1.32
- Represented cycles
- 42006–2022
- Current archive
- 0canonical records
- History span
- Oct 21, 2006through Nov 3, 2022
Known names and relationships
- Known aliases
- No additional reviewed aliases
- Organization type
- Single canonical organization
- Cycles represented
- 2006 · 2008 · 2010 · 2022
9 eligible historical polls is a limited denominator; both MAE and bias may move materially as another cycle is added.
Current-cycle records
Archive source date 2026-09-09 · bundled copy. Archive records may be newer than the sealed forecast; inclusion here does not mean the forecast uses them.
0 shown · 0 total
No record in the currently authorized canonical archive is attached to this identity.
This is not evidence that the pollster released no 2026 polling; the source-audit gaps remain documented.
Eligible historical observations
9 shown · 9 total
| Cycle | Race | Type | Field end | Sample | Poll | Result | Error |
|---|---|---|---|---|---|---|---|
| 2022 | 2022_House-G_AK-1 | House-G | 2022-11-03 | 400 | D+12.0 | D+9.9 | D+2.1 |
| 2022 | 2022_House-G_AK-1 | House-G | 2022-11-03 | 400 | D+23.0 | D+22.9 | D+0.1 |
| 2022 | 2022_House-G_AK-1 | House-G | 2022-11-03 | 400 | D+23.0 | D+22.8 | D+0.2 |
| 2022 | 2022_Gov-G_AK | Gov-G | 2022-10-23 | 403 | R+24.0 | R+26.2 | D+2.2 |
| 2010 | 2010_Gov-G_AK | Gov-G | 2010-10-26 | 421 | R+12.0 | R+21.5 | D+9.5 |
| 2010 | 2010_Gov-G_AK | Gov-G | 2010-10-25 | 356 | R+10.0 | R+21.5 | D+11.5 |
| 2008 | 2008_Pres-G_AK | Pres-G | 2008-10-27 | 489 | R+19.0 | R+21.6 | D+2.6 |
| 2006 | 2006_Gov-G_AK | Gov-G | 2006-11-04 | 613 | R+6.1 | R+7.4 | D+1.3 |
| 2006 | 2006_Gov-G_AK | Gov-G | 2006-10-21 | 510 | R+9.0 | R+7.4 | R+1.6 |
Method · historical final-three-week D/R general-election rows plus verified historical supplement; min n=5
Definition · bias_D is poll D-R margin minus actual D-R margin; positive overstates Democrats.
A missing sample, sponsor or source is labeled unavailable; it is never reconstructed.
Poll data via VoteHub, used under CC BY 4.0. Poll data from The New York Times, used under CC BY 4.0.