FiveThirtyEight's Pollster Ratings: pollster-ratings.csv

This directory contains the data behind FiveThirtyEight's pollster ratings.

See also:

Past data:

pollster-stats-full.xlsx contains a spreadsheet with all of the summary data and calculations involved in determining the pollster ratings as well as descriptions for each column.

pollster-ratings.csv has ratings and calculations for each pollster. A copy of this data and descriptions for each column can also be found in pollster-stats-full.xlsx.

raw-polls.csv contains all of the polls analyzed to give each pollster a grade. Descriptions for each column are in the table below.

Header Definition
pollno FiveThirtyEight poll ID number
race Election polled
year Year of election (not year of poll)
location Location (state or Congressional district, or "US" for national polls)
type_simple Type of election (5 categories)
type_detail Detailed type of election (this distinguishes between Republican and Democratic primaries, for example, whereas type_simple does not)
pollster Pollster name
partisan Flag for internal/partisan poll. "D" indicates Democratic poll, "R" indicates Republican poll, "I" indicates poll put out by independent candidate's campaign. Note that different sources define these categories differently and our categorization will often reflect the original source's definition. In other words, these definitions may be inconsistent and should be used carefully.
polldate Median field date of the poll
samplesize Sample size of the poll. Where missing, this is estimated from the poll's margin of error, or similar polls conducted by the same polling firm. A sample size of 600 is used if no better estimate is available.
cand1_name Name of Candidate #1. Candidates #1 and #2 are defined as the top two finishers in the election (regardless of whether or not they were the top two candidates in the poll). In races where a Democrat and a Republican were the top two finishers, Candidate #1 is the Democrat and simply listed as "Democrat".
cand1_pct Candidate #1's share of the vote in the poll.
cand2_name Name of Candidate #2. Candidates #1 and #2 are defined as the top two finishers in the election (regardless of whether or not they were the top two candidates in the poll). In races where a Democrat and a Republican were the top two finishers, Candidate #2 is the Republican and simply listed as "Republican"
cand2_pct Candidate #2's share of the vote in the poll.
cand3_pct Share of the vote for the top candidate listed in the poll, other than Candidate #1 and Candidate #2.
margin_poll Projected margin of victory (defeat) for Candidate #1. This is calculated as cand1_pct - cand2_pct. In races between a Democrat and a Republican, positive values indicate a Democratic lead; negative values a Repubican lead.
electiondate Date of election
cand1_actual Actual share of vote for Candidate #1
cand2_actual Actual share of vote for Candidate #2
margin_actual Actual margin in the election. This is calculated as cand1_actual - cand2_actual. In races between a Democrat and a Republican, positive values indicate a Democratic win; negative values a Republican win.
error Absolute value of the difference between the actual and polled result. This is calculated as abs(margin_poll - margin_actual)
bias Statistical bias of the poll. This is calculated only for races in which the top two finishers were a Democrat and a Republican. It is calculated as margin_poll - margin_actual. Positive values indicate a Democratic bias (the Democrat did better in the poll than the election). Negative values indicate a Republican bias.
rightcall Flag to indicate whether the pollster called the outcome correctly, i.e. whether the candidate they had listed in 1st place won the election. A 1 indicates a correct call and a 0 an incorrect call; 0.5 indicates that the pollster had two or more candidates tied for the lead and one of the tied candidates won.
comment Additional information, such as alternate names for the poll.

Data license: CC Attribution 4.0 License · Data source: fivethirtyeight/data on GitHub

430 rows sorted by Banned by 538

View and edit SQL

Suggested facets: NCPP / AAPOR / Roper, Live Caller With Cellphones, Methodology, Banned by 538, 538 Grade

Link rowid Pollster Pollster Rating ID # of Polls NCPP / AAPOR / Roper 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 Average Distance from Polling Average (ADPA) Herding Penalty
1 Monmouth University 215 100 yes yes Live no -1.9 -1.5 A+ D +1.3 80% 21% 5.2 6.5 -1.1 -1.9 -1.6 -1.5 70 D +1.8 D +1.3 R +0.5 5.1 0.2
2 Selzer & Co. 304 44 yes yes Live no -1.9 -1.4 A+ D +0.1 84% 25% 4.2 5.7 -1.3 -1.9 -1.1 -1.4 31 D +0.1 D +0.1 D +0.2 5.0 0.0
3 ABC News/Washington Post 3 63 yes yes Live no -1.5 -1.3 A+ D +0.6 79% 5% 2.8 4.6 -1.7 -1.5 -1.1 -1.3 58 D +0.9 D +0.6 D +1.5 3.8 0.02
4 Elway Research 87 21 yes yes Live no -2.5 -1.2 A/B° D +0.5 90% 5% 3.9 6.3 -2.2 -2.5 -1.0 -1.2 20 D +1.2 D +0.5 D +3.7 4.5 0.37
5 Field Research Corp. (Field Poll) 94 25 yes yes Live no -2.0 -1.2 A/B° R +1.0 100% 16% 3.9 5.5 -1.5 -2.0 -0.8 -1.2 18 R +3.3 R +1.0 D +0.6 4.7 0.0
6 IBD/TIPP 144 22 yes yes Live no -2.0 -1.1 A/B° R +0.8 73% 5% 2.1 4.0 -1.7 -2.0 -0.9 -1.1 22 R +1.8 R +0.8 R +1.3 3.4 0.23
7 Muhlenberg College 219 29 yes yes Live no -2.2 -1.0 A+ R +0.2 84% 7% 3.4 6.0 -2.5 -2.2 -1.2 -1.0 28 R +0.4 R +0.2 D +0.2 3.9 0.84
8 Marquette University Law School 195 11 yes yes Live no -2.4 -1.0 A/B° D +0.3 77% 9% 2.8 5.6 -2.6 -2.4 -0.8 -1.0 8 D +1.0 D +0.3 R +0.2 4.9 0.0
9 Siena College/New York Times Upshot 448 57 yes yes Live no -1.3 -1.0 A+ R +0.3 69% 11% 3.9 5.7 -1.7 -1.3 -1.0 -1.0 57 R +0.4 R +0.3 D +0.4 4.2 0.21
10 Marist College 183 172 yes yes Live no -1.1 -1.0 A+ R +0.2 84% 24% 5.2 6.3 -1.0 -1.1 -0.9 -1.0 111 R +0.2 R +0.2 R +0.0 5.1 0.03
11 Data Orbital 73 8 yes yes Live no -2.8 -0.9 A/B° D +0.3 100% 0% 2.2 5.3 -3.0 -2.8 -0.8 -0.9 8 D +0.9 D +0.3 R +1.4 3.7 0.73
12 National Journal 224 12 yes yes Live no -3.2 -0.9 A/B° R +0.2 100% 0% 2.6 6.2 -3.4 -3.2 -0.8 -0.9 12 R +0.6 R +0.2 D +0.3 3.5 0.9
13 Stockton University 317 10 yes yes Live no -1.4 -0.8 A/B° D +0.7 100% 20% 3.9 5.3 -1.2 -1.4 -0.5 -0.8 10 D +2.2 D +0.7 D +0.7 6.1 0.0
14 Grove Insight 129 29 no yes Live no -2.8 -0.8 A/B° D +0.5 90% 7% 3.1 5.8 -2.4 -2.8 -1.4 -0.8 29 D +1.0 D +0.5 D +3.4 3.6 0.71
15 SurveyUSA 325 790 yes partial IVR/Online/Live no -1.1 -0.8 A D +0.1 90% 19% 4.6 5.9 -1.1 -1.1 -1.0 -0.8 628 D +0.1 D +0.1 R +0.3 5.0 0.12
16 Ciruli Associates 51 17 yes yes Live no -2.3 -0.7 A/B° R +0.4 94% 0% 3.6 6.1 -2.3 -2.3 -0.5 -0.7 16 R +2.1 R +0.4 R +2.5 5.0 0.72
17 Fairleigh Dickinson University (PublicMind) 92 18 yes yes Live no -1.4 -0.7 A/B° D +0.0 94% 6% 4.1 5.5 -1.2 -1.4 -0.5 -0.7 17 D +0.1 D +0.0 D +3.1 4.7 0.25
18 CBS News/New York Times 36 54 yes yes Live no -0.9 -0.7 A D +0.4 77% 28% 4.5 5.4 -0.7 -0.9 -0.5 -0.7 44 D +0.7 D +0.4 D +1.8 4.2 0.11
19 Behavior Research Center (Rocky Mountain) 27 7 yes yes Live no -2.4 -0.7 A/B° D +0.0 71% 0% 3.5 6.5 -2.9 -2.4 -0.3 -0.7 5 D +0.6 D +0.0 R +2.1 9.4 0.0
20 University of Massachusetts Lowell 355 17 yes partial Online/Live no -1.3 -0.6 A/B° R +0.2 88% 24% 4.5 6.7 -2.0 -1.3 -0.6 -0.6 9 R +0.8 R +0.2 R +0.6 6.0 0.0
21 Michigan State University 463 2 yes yes Live no -7.6 -0.6 A/B° R +0.1 100% 0% 1.0 9.6 -8.4 -7.6 -0.8 -0.6 2 R +0.5 R +0.1 R +1.5   0.0
22 University of Connecticut 347 7 yes yes Live no -1.5 -0.6 A/B° R +0.3 93% 0% 3.6 5.4 -1.6 -1.5 -0.2 -0.6 7 R +1.9 R +0.3 R +2.0 8.0 0.0
23 MassINC Polling Group 198 16 no yes Live no -2.2 -0.6 A/B° R +0.8 88% 13% 3.5 6.5 -2.8 -2.2 -0.9 -0.6 12 R +2.4 R +0.8 R +1.4 6.1 0.06
24 Lake Research Partners 165 10 yes partial IVR/Live no -2.1 -0.6 A/B° D +0.7 80% 20% 3.9 6.1 -2.0 -2.1 -0.6 -0.6 10 D +2.4 D +0.7 D +3.5 5.8 0.06
25 Temple University 336 6 yes yes* Live* no -1.4 -0.6 A/B° R +0.2 100% 17% 3.7 5.2 -1.3 -1.4 -0.2 -0.6 5 R +2.5 R +0.2 D +0.8 3.6 0.11
26 University of Cincinnati (Ohio Poll) 346 39 yes yes Live no -0.9 -0.6 A- R +1.4 94% 21% 3.9 5.7 -1.6 -0.9 -0.4 -0.6 30 R +3.2 R +1.4 R +2.5 3.4 0.43
27 High Point University 139 2 yes yes Live no -5.2 -0.6 A/B° D +0.0 100% 0% 1.0 5.2 -4.1 -5.2 -0.4 -0.6 2 D +0.1 D +0.0 D +1.8 3.3 0.81
28 Emerson College 88 142 yes no IVR/Online no -1.1 -0.5 A- R +0.0 81% 18% 5.0 6.1 -0.9 -1.1 -1.0 -0.5 113 R +0.0 R +0.0 R +1.4 4.8 0.23
29 Los Angeles Times 172 38 yes yes Live no -0.5 -0.5 A/B° R +0.3 86% 26% 5.0 6.3 -1.2 -0.5 -0.2 -0.5 23 R +1.0 R +0.3 D +0.8 5.3 0.06
30 Siena College 305 53 yes yes Live no -0.8 -0.5 A- R +0.8 88% 25% 5.1 5.4 0.0 -0.8 -0.5 -0.5 49 R +1.2 R +0.8 R +1.1 4.4 0.27
31 Fox News/Beacon Research/Shaw & Co. Research 103 40 yes yes Live no -0.5 -0.5 A- D +1.5 71% 38% 5.6 5.7 0.1 -0.5 -0.3 -0.5 25 D +2.7 D +1.5 D +1.0 4.9 0.0
32 Winthrop University 386 1 yes yes Live no -4.3 -0.5 A/B° D +0.0 100% 0% 0.2 4.6 -4.3 -4.3 -0.2 -0.5 1 D +0.2 D +0.0 R +0.9 3.8 0.61
33 Elon University 86 7 yes yes Live no -1.0 -0.5 A/B° D +0.6 50% 14% 3.2 4.7 -1.3 -1.0 -0.2 -0.5 7 D +2.7 D +0.6 D +1.1 3.7 0.47
34 Indiana University 149 2 yes yes Live no -4.5 -0.5 A/B° D +0.0 100% 0% 0.9 6.1 -5.1 -4.5 -0.2 -0.5 2 D +0.9 D +0.0 D +4.1   0.0
35 Castleton University 45 3 yes yes Live no -0.7 -0.5 A/B°   100% 33% 9.9 9.2 0.9 -0.7 -0.1 -0.5 0         0.0
36 Public Policy Institute of California 262 13 yes yes Live no -0.3 -0.4 A/B° R +1.1 100% 15% 4.7 5.7 -0.8 -0.3 -0.1 -0.4 9 R +4.4 R +1.1 R +1.5   0.0
37 University of North Florida 360 8 yes yes Live no -0.3 -0.4 A/B° D +0.8 38% 25% 3.9 5.6 -1.5 -0.3 -0.1 -0.4 6 D +3.9 D +0.8 D +1.4 4.0 0.05
38 Yankelovich Partners Inc. 390 6 yes yes* Live* no 0.0 -0.4 A/B° R +0.0 42% 50% 7.0 6.7 0.5 0.0 0.0 -0.4 3 R +1.2 R +0.0 R +1.3 4.7 0.0
39 University of Florida 349 1 yes yes Live no -1.0 -0.4 A/B° D +0.0 50% 0% 1.1 4.6 -3.4 -1.0 0.0 -0.4 1 D +1.1 D +0.0 R +0.1 1.4 1.2
40 Princeton Survey Research Associates International 258 33 yes yes Live no -0.1 -0.4 A/B° D +0.2 70% 30% 4.8 5.0 0.0 -0.1 -0.1 -0.4 31 D +0.5 D +0.2 R +0.2 4.6 0.0
41 Fox News/Opinion Dynamics Corp. 104 34 yes yes* Live* no -0.2 -0.4 A/B° R +0.4 72% 12% 3.9 5.0 -0.9 -0.2 -0.1 -0.4 28 R +1.0 R +0.4 R +1.6 4.1 0.09
42 Suffolk University 323 79 no yes Live no -0.8 -0.4 A- D +0.5 80% 24% 4.9 6.5 -1.5 -0.8 -0.6 -0.4 49 D +0.8 D +0.5 D +1.8 5.8 0.0
43 NBC News/Wall Street Journal 221 29 yes yes Live no -0.6 -0.4 A/B° D +0.8 74% 14% 4.0 5.0 -0.8 -0.6 -0.3 -0.4 24 D +1.7 D +0.8 D +1.3 2.9 0.53
44 University of Illinois at Chicago 352 1 yes yes* Live* no 6.9 -0.3 A/B° R +0.2 100% 100% 14.1 5.4 8.9 6.9 0.1 -0.3 1 R +14.1 R +0.2 R +5.1   0.0
45 University of Wisconsin (Badger Poll) 365 6 yes yes* Live* no -0.3 -0.3 A/B° D +0.1 83% 17% 6.9 5.9 1.2 -0.3 0.0 -0.3 5 D +1.3 D +0.1 D +1.7 4.0 0.88
46 Research & Polling Inc. 280 31 no yes Live no -1.6 -0.3 A- R +0.9 84% 10% 4.4 6.0 -1.4 -1.6 -0.8 -0.3 30 R +1.7 R +0.9 R +0.4 3.0 0.55
47 RKM Research and Communications Inc. 272 28 no yes Live no -1.6 -0.3 A/B° R +0.2 88% 21% 5.3 6.4 -1.0 -1.6 -0.6 -0.3 20 R +0.5 R +0.2 R +1.5 4.3 0.08
48 Western New England University 380 14 yes yes Live no -1.1 -0.3 A/B° R +1.2 89% 29% 5.5 6.2 -0.5 -1.1 -0.4 -0.3 13 R +3.2 R +1.2 D +0.6 3.0 1.32
49 Abt Associates 7 8 yes yes Live no 0.1 -0.2 A/B° D +0.8 88% 25% 4.1 5.2 -0.9 0.1 0.0 -0.2 7 D +3.8 D +0.8 D +0.7 4.0 0.49
50 Georgetown University (Battleground) 114 31 yes yes Live no 0.0 -0.2 A/B° R +0.8 55% 19% 3.5 4.3 -0.6 0.0 0.0 -0.2 31 R +1.9 R +0.8 R +2.0 3.4 0.27
51 Christopher Newport University 50 8 no yes Live no -2.2 -0.2 A/B° D +0.6 100% 13% 3.5 4.9 -1.2 -2.2 -0.6 -0.2 8 D +2.2 D +0.6 D +1.6 5.7 0.0
52 St. Norbert College 313 12 no yes Live no -2.4 -0.2 A/B° D +0.2 88% 0% 3.9 6.8 -2.7 -2.4 -0.7 -0.2 11 D +0.9 D +0.2 D +2.9 5.1 0.23
53 Market Shares Corp. 187 26 yes yes Live no 0.1 -0.2 A/B° R +1.2 85% 31% 6.8 5.6 1.4 0.1 0.0 -0.2 22 R +4.1 R +1.2 R +2.0 4.8 0.37
54 Quinnipiac University 267 204 yes yes Live no -0.1 -0.2 B+ D +0.2 83% 25% 4.6 5.5 -0.7 -0.1 -0.1 -0.2 152 D +0.2 D +0.2 D +0.5 5.2 0.0
55 Mason-Dixon Polling & Research Inc. 197 428 no yes Live no -0.5 -0.2 B+ R +0.7 86% 24% 5.2 5.7 -0.3 -0.5 -0.5 -0.2 370 R +0.8 R +0.7 R +1.1 5.3 0.06
56 EPIC-MRA 84 47 no yes Live no -0.9 -0.2 B+ R +0.2 81% 23% 5.0 6.0 -0.8 -0.9 -0.6 -0.2 42 R +0.4 R +0.2 D +0.6 4.5 0.3
57 Blum & Weprin Associates 32 19 no yes Live no -2.2 -0.1 A/B° R +0.8 95% 21% 4.8 5.2 -0.2 -2.2 -0.5 -0.1 17 R +3.4 R +0.8 D +1.0 5.0 0.0
58 CNN/Opinion Research Corp. 37 98 yes yes Live no -0.2 -0.1 B+ D +0.1 72% 24% 5.4 6.0 -0.4 -0.2 -0.2 -0.1 70 D +0.1 D +0.1 D +0.2 4.6 0.2
59 Angus Reid Global 13 30 no no Online no -2.5 -0.1 B+ R +1.3 93% 7% 3.2 5.6 -2.2 -2.5 -1.3 -0.1 30 R +2.6 R +1.3 D +0.9 3.1 0.82
60 Cygnal 67 12 no partial IVR/Online/Live no -3.0 -0.1 A/B° D +1.1 92% 0% 3.2 5.7 -2.3 -3.0 -1.2 -0.1 12 D +2.8 D +1.1 R +1.1 3.7 0.67
61 Public Religion Research Institute 428 1 yes partial Online/Live no -2.7 -0.1 A/B° D +0.0 100% 0% 0.4 5.1 -4.4 -2.7 -0.1 -0.1 1 D +0.4 D +0.0 D +1.6 2.0 1.23
62 Fleming & Associates 96 17 no yes Live no -1.6 -0.1 A/B° R +0.5 100% 12% 5.0 6.3 -1.1 -1.6 -0.6 -0.1 15 R +1.4 R +0.5 R +0.2 3.4 0.69
63 SSRS 297 16 yes yes Live no 0.6 -0.1 A/B° D +1.2 50% 19% 4.6 4.9 -0.2 0.6 0.3 -0.1 16 D +2.8 D +1.2 D +2.8 5.4 0.0
64 American Viewpoint 10 8 no yes Live no -1.6 0.0 A/B° R +0.9 69% 0% 4.2 5.7 -1.3 -1.6 -0.4 0.0 8 R +3.6 R +0.9 R +3.2 6.3 0.0
65 University of Arkansas 345 6 no yes Live no -2.8 0.0 A/B° D +0.7 100% 0% 3.8 5.5 -1.5 -2.8 -0.6 0.0 6 D +3.8 D +0.7 R +4.2 6.9 0.0
66 National Research Inc. 225 9 no yes Live no -1.4 0.0 A/B° R +0.7 72% 11% 5.5 6.7 -1.0 -1.4 -0.4 0.0 7 R +3.6 R +0.7 R +5.5 5.5 0.04
67 Harper Polling 132 11 no partial IVR/Live no -1.9 0.0 B/C° D +0.1 91% 18% 3.6 6.0 -2.2 -1.9 -0.6 0.0 8 D +0.5 D +0.1 R +0.6 5.3 0.0
68 RT Strategies 275 42 yes yes Live no 0.8 0.1 B/C° D +0.9 71% 40% 5.8 4.7 1.2 0.8 0.4 0.1 42 D +1.9 D +0.9 D +3.5 8.9 0.0
70 University of South Alabama 361 8 no yes Live no -2.7 0.1 B/C° R +0.3 100% 0% 2.8 5.3 -2.4 -2.7 -0.4 0.1 8 R +1.9 R +0.3 R +1.5 5.9 0.03
71 Greenberg Quinlan Rosner/American Viewpoint 127 8 no yes Live no -1.0 0.1 B/C° R +0.7 100% 50% 4.4 4.9 -0.3 -1.0 -0.2 0.1 6 R +4.2 R +0.7 D +1.6 6.2 0.0
72 Clemson University 54 5 no yes Live no -2.3 0.1 B/C° R +0.3 100% 40% 10.3 7.5 2.9 -2.3 -0.3 0.1 1 R +16.7 R +0.3 R +9.7 17.1 0.0
73 Market Research Institute Inc. 186 9 no yes* Live* no -2.5 0.1 B/C° R +0.2 100% 11% 2.9 5.5 -2.3 -2.5 -0.4 0.1 9 R +1.4 R +0.2 R +0.8 4.6 0.51
74 Ward Research (Honolulu Star-Advertiser) 375 15 no yes Live no -1.1 0.1 B/C° R +0.4 77% 40% 6.1 6.0 0.2 -1.1 -0.4 0.1 15 R +1.2 R +0.4 D +1.5 3.9 0.49
75 University of Washington 364 9 no yes Live no -1.5 0.1 B/C° D +0.1 100% 0% 3.7 5.6 -1.7 -1.5 -0.3 0.1 9 D +0.3 D +0.1 D +3.4 5.3 0.42
76 Landmark Communications 166 38 no partial IVR/Online/Live no -0.7 0.1 B D +1.6 82% 24% 4.7 5.3 -0.4 -0.7 -0.4 0.1 32 D +2.7 D +1.6 R +0.6 4.5 0.0
77 Strategies 360 321 4 no yes Live no -2.9 0.1 B/C° R +0.1 63% 0% 2.0 5.6 -3.4 -2.9 -0.4 0.1 4 R +0.6 R +0.1 D +1.0 4.2 0.48
78 Montana State University Billings 216 7 no yes Live no -4.1 0.1 B/C° D +0.4 57% 0% 3.6 6.3 -2.5 -4.1 -0.5 0.1 7 D +3.0 D +0.4 D +2.6   0.0
79 Harstad Strategic Research Inc. 134 9 no yes Live no -1.1 0.1 B/C° D +0.7 72% 11% 3.8 6.0 -2.0 -1.1 -0.2 0.1 9 D +3.4 D +0.7 D +3.1 4.5 0.06
80 Financial Dynamics 95 15 no yes* Live* no -1.2 0.1 B/C° R +0.6 100% 0% 2.8 4.7 -1.8 -1.2 -0.4 0.1 15 R +2.0 R +0.6 R +2.1 2.5 0.59
81 Keating Research Inc. 161 5 no yes Live no -2.1 0.1 B/C° D +0.2 80% 0% 2.4 5.0 -2.4 -2.1 -0.4 0.1 5 D +0.9 D +0.2 D +3.0 3.4 0.76
82 Rutgers University 295 14 yes yes Live no 1.7 0.1 B/C° R +0.0 86% 14% 5.7 5.7 0.2 1.7 0.5 0.1 14 R +0.1 R +0.0 D +0.9 6.2 0.0
83 Crawford Johnson & Northcott Inc. 63 5 no yes* Live* no -2.8 0.1 B/C° D +0.1 100% 40% 4.7 7.4 -2.6 -2.8 -0.3 0.1 1 D +3.3 D +0.1     0.0
84 Tarrance Group 333 27 no yes Live no -0.2 0.2 B/C° R +0.9 85% 26% 6.2 6.6 -0.2 -0.2 -0.1 0.2 23 R +2.3 R +0.9 R +6.8 7.2 0.0
85 Iowa State University 153 3 no yes Live no -3.7 0.2 B/C°   67% 33% 6.3 8.6 -2.1 -3.7 -0.4 0.2 0         0.0
86 McKeon & Associates 202 3 no yes Live no -4.1 0.2 B/C° D +0.2 67% 33% 2.9 5.9 -2.8 -4.1 -0.5 0.2 2 D +3.0 D +0.2 D +0.5 12.8 0.0
87 KRC/Communications Research 160 22 no yes* Live* no -0.6 0.2 B/C° D +0.1 91% 41% 6.9 7.3 -0.2 -0.6 -0.2 0.2 11 D +0.7 D +0.1 D +2.5 6.4 0.0
88 Research Co. 449 20 no no Online no -2.3 0.2 B R +0.6 88% 10% 3.8 6.0 -2.1 -2.3 -1.2 0.2 20 R +1.1 R +0.6 D +0.8 3.7 1.17
89 Louisville Courier-Journal 174 10 no yes* Live* no -1.5 0.2 B/C° R +0.2 80% 10% 3.3 5.2 -1.7 -1.5 -0.3 0.2 10 R +1.3 R +0.2 R +1.6 5.4 0.32
90 Market Research Insight 185 9 no yes Live no -0.4 0.2 B/C° D +0.1 100% 22% 4.0 5.1 -0.9 -0.4 -0.1 0.2 7 D +0.3 D +0.1 D +1.9 6.9 0.0
91 Orion Strategies 246 4 no yes Live no -4.0 0.2 B/C° D +0.1 100% 0% 3.1 6.6 -3.3 -4.0 -0.4 0.2 3 D +1.3 D +0.1 D +6.3 2.6 0.35
92 Public Policy Polling 263 418 no no IVR/Online/Text no -0.3 0.2 B D +0.3 80% 31% 5.0 5.4 -0.2 -0.3 -0.3 0.2 298 D +0.3 D +0.3 D +0.9 4.6 0.0
93 Y2 Analytics 389 4 no yes Live no -1.0 0.2 B/C° D +0.4 100% 50% 9.6 5.8 4.0 -1.0 -0.2 0.2 3 D +3.3 D +0.4 R +6.5 7.1 0.0
94 Gallup 112 80 yes yes Live no 0.7 0.2 B R +0.8 71% 31% 4.2 4.8 -0.4 0.7 0.5 0.2 66 R +1.3 R +0.8 R +1.6 4.2 0.0
95 Marshall Marketing & Communications 196 4 no yes* Live* no -2.5 0.2 B/C° R +0.2 100% 0% 2.8 6.6 -3.6 -2.5 -0.2 0.2 3 R +2.2 R +0.2 R +0.5   0.0
96 Pew Research Center 253 21 yes partial Online/Live no 0.7 0.2 B/C° D +0.6 60% 29% 3.5 3.7 0.0 0.7 0.3 0.2 21 D +1.5 D +0.6 D +0.9 3.5 0.0
97 Missouri State University 212 3 no yes Live no -3.0 0.2 B/C° D +0.3 67% 0% 4.4 7.5 -3.0 -3.0 -0.3 0.2 3 D +4.1 D +0.3 D +1.2 4.1 0.26
98 Northern Arizona University 234 4 no yes* Live* no -3.1 0.2 B/C° R +0.3 100% 25% 3.6 5.6 -1.9 -3.1 -0.3 0.2 4 R +3.3 R +0.3 R +5.1 6.0 0.18
99 Pan Atlantic Research 249 17 no partial Online/Live no -1.0 0.3 B/C° D +0.9 91% 24% 6.8 6.8 0.2 -1.0 -0.4 0.3 15 D +2.8 D +0.9 D +1.5 7.5 0.0
100 University of New Hampshire 357 114 yes yes Live no 0.4 0.3 B D +2.9 85% 26% 5.9 6.1 0.0 0.4 0.3 0.3 98 D +3.7 D +2.9 D +3.5 5.7 0.06
101 Middle Tennessee State University 208 6 yes yes Live no 3.3 0.3 B/C° D +1.1 100% 67% 10.1 5.8 4.5 3.3 0.6 0.3 5 D +6.5 D +1.1 R +2.8 5.0 0.12

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CREATE TABLE "pollster-ratings/pollster-ratings" (
"Pollster" TEXT,
  "Pollster Rating ID" INTEGER,
  "# of Polls" INTEGER,
  "NCPP / AAPOR / Roper" TEXT,
  "Live Caller With Cellphones" TEXT,
  "Methodology" TEXT,
  "Banned by 538" TEXT,
  "Historical Advanced Plus-Minus" REAL,
  "Predictive    Plus-Minus" REAL,
  "538 Grade" TEXT,
  "Mean-Reverted Bias" TEXT,
  "Races Called Correctly" TEXT,
  "Misses Outside MOE" TEXT,
  "Simple Average Error" REAL,
  "Simple Expected Error" REAL,
  "Simple Plus-Minus" REAL,
  "Advanced Plus-Minus" REAL,
  "Mean-Reverted Advanced Plus Minus" REAL,
  "Predictive Plus-Minus" REAL,
  "# of Polls for Bias Analysis" INTEGER,
  "Bias" TEXT,
  "Mean-Reverted Bias.1" TEXT,
  "House Effect" TEXT,
  "Average Distance from Polling Average (ADPA)" REAL,
  "Herding Penalty" REAL
);
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