pollster-ratings/2018/pollster-ratings: 90
| rowid | Pollster | # of Polls | NCPP / AAPOR / Roper | Exclusively Live Caller With Cellphones | Methodology | Banned by 538 | Historical Advanced Plus-Minus | Predictive Plus-Minus | 538 Grade | Mean-Reverted Bias | Races Called Correctly | Misses Outside MOE | Simple Average Error | Simple Expected Error | Simple Plus-Minus | Advanced Plus-Minus | Mean-Reverted Advanced Plus Minus | Predictive Plus-Minus | # of Polls for Bias Analysis | Bias | Mean-Reverted Bias.1 | House Effect |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 90 | GfK Group | 21 | yes | no | Online | no | -0.1 | 0.1 | B | D +0.3 | 88% | 19% | 3.9 | 4.8 | -0.9 | -0.1 | -0.1 | 0.1 | 21 | D +0.6 | D +0.3 | D +1.2 |