Table 13.
Summary statistics for each performance parameter that we analyzed for all 35,599 belief criteria strategies. The columns labeled “n” show the number of strategies whose predictions shared each minimum and maximum value.
| statistic | Min. | n | Median | Mean | Max. | n |
|---|---|---|---|---|---|---|
| true positives | 14.0 | 1,440 | 33.0 | 30.8 | 34.0 | 17,280 |
| false positives | 0.0 | 17,279 | 1.0 | 0.6 | 2.0 | 2,880 |
| true negatives | 0.0 | 21,599 | 0.0 | 0.7 | 2.0 | 11,520 |
| false negatives | 0.0 | 19,583 | 0.0 | 0.6 | 2.0 | 4,032 |
| sensitivity | 0.88 | 576 | 1.00 | 0.98 | 1.00 | 19,583 |
| specificity | 0.00 | 11,232 | 0.50 | 0.44 | 1.00 | 6,912 |
| positive predictive value | 0.94 | 240 | 0.97 | 0.98 | 1.00 | 17,279 |
| DIKB-only unknown | 10.0 | 5,760 | 13.0 | 15.3 | 34.0 | 576 |
| validation-set-only unknown | 3.0 | 864 | 40.0 | 42.4 | 62.0 | 2,880 |
| kappa | 0.41 | 576 | 0.47 | 0.48 | 0.52 | 768 |