Table 1 Percentage correct of overall test performance and average confidence rating
|  | Refutation text (n = 80) | Standard text (n = 81) |
|---|---|---|
Overall test performance (%) | ||
 Pre test | 36.3 ± 0.03 | 34.3 ± 0.03 |
 Post test | 58.8 ± 0.03 | 57.1 ± 0.03 |
Average confidence rating (max 5) | ||
 Pre test | 3.10 ± 0.06 | 3.23 ± 0.06 |
 Post test | 3.52 ± 0.08 | 3.58 ± 0.05 |