Valley 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
- 8
- Mean absolute error
- 5.06percentage points
- Historical bias
- D+1.43
- Represented cycles
- 31998–2004
- Current archive
- 0canonical records
- History span
- Oct 20, 1998through Oct 24, 2004
Known names and relationships
- Known aliases
- No additional reviewed aliases
- Organization type
- Single canonical organization
- Cycles represented
- 1998 · 2000 · 2004
8 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
8 shown · 8 total
| Cycle | Race | Type | Field end | Sample | Poll | Result | Error |
|---|---|---|---|---|---|---|---|
| 2004 | 2004_Sen-G_UT | Sen-G | 2004-10-24 | 1,200 | R+38.0 | R+40.3 | D+2.3 |
| 2004 | 2004_Pres-G_UT | Pres-G | 2004-10-24 | 1,200 | R+45.0 | R+45.5 | D+0.5 |
| 2004 | 2004_House-G_UT-3 | House-G | 2004-10-24 | 400 | R+23.7 | R+30.9 | D+7.2 |
| 2004 | 2004_House-G_UT-2 | House-G | 2004-10-24 | 400 | D+5.6 | D+11.5 | R+5.9 |
| 2004 | 2004_House-G_UT-1 | House-G | 2004-10-24 | 400 | R+31.5 | R+38.8 | D+7.3 |
| 2004 | 2004_Gov-G_UT | Gov-G | 2004-10-24 | 1,200 | R+14.0 | R+16.4 | D+2.4 |
| 2000 | 2000_Pres-G_UT | Pres-G | 2000-11-03 | 1,300 | R+36.0 | R+40.5 | D+4.5 |
| 1998 | 1998_House-G_UT-2 | House-G | 1998-10-20 | 452 | D+1.0 | R+9.3 | D+10.3 |
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.