Ipsos comes out ahead on 4 of 6 measures in the Crosstab Trust Index, which grades pollsters on how close their final polls came to actual results from 1998 to 2022.
| Measure | InsiderAdvantage | Ipsos |
|---|---|---|
| Trust Score | 28/100 | 60/100 ★ |
| Average error how far final polls missed the result | 4.6 pts ★ | 4.7 pts |
| Versus expected error compared with what its races predicted | 0.3 worse | 0.1 worse ★ |
| Consistency random miss once its tilt is removed | ±4.6 pts | ±4 pts ★ |
| Historical bias closer to even is better | D+0.3 ★ | D+2.4 |
| Winners called | 62% | 73% ★ |
| Track record final polls analyzed, 1998–2022 | 94 polls | 175 polls |
| 2026 polls | 14 | 14 |
| 2026 lean versus other polls of the same races | R+0.8 | — |
Compare them in the interactive Trust Index All pollster ratings
More comparisons: Ipsos vs. YouGov · InsiderAdvantage vs. YouGov · Emerson College vs. Ipsos · Emerson College vs. InsiderAdvantage · Ipsos vs. University of New Hampshire Survey Center · InsiderAdvantage vs. University of New Hampshire Survey Center · Ipsos vs. New York Times/Siena College · InsiderAdvantage vs. New York Times/Siena College
InsiderAdvantage has the smaller average error (4.6 pts vs. 4.7 pts). Overall, ipsos comes out ahead on 4 of 6 measures in the Crosstab Trust Index (InsiderAdvantage: C, Trust Score 28; Ipsos: B+, Trust Score 60).
Grades: Crosstab Trust Index, computed from FiveThirtyEight's pollster-ratings data (CC BY 4.0), 1998–2022; 2026 measures from Crosstab's polling data.
Updated 2026-10-04 · Crosstab, nonpartisan polling analysis.