Table S3.
Voting preferences by group for study 2
| Voting preferences | Mean (SE) | Kruskal–Wallis (χ2) | Mann–Whitney u | ||
| Group 1 (Gillard bias) | Group 2 (Abbott bias) | Group 3 (control) | |||
| PreImpressionAbbott | 7.40 (0.07) | 7.36 (0.08) | 7.37 (0.07) | 0.458 | 241,861.5 |
| PreImpressionGillard | 7.13 (0.07) | 7.12 (0.08) | 7.13 (0.07) | 0.081 | 243,115.0 |
| PreTrustAbbott | 7.26 (0.07) | 7.22 (0.08) | 7.18 (0.07) | 0.954 | 241,924.5 |
| PreTrustGillard | 6.95 (0.07) | 6.89 (0.08) | 6.92 (0.07) | 0.222 | 241,779.0 |
| PreLikeAbbott | 6.42 (0.08) | 6.39 (0.08) | 6.23 (0.08) | 2.987 | 243,677.5 |
| PreLikeGillard | 6.24 (0.08) | 6.30 (0.08) | 6.11 (0.08) | 3.178 | 239,556.0 |
| PostImpressionAbbott | 4.61 (0.09) | 6.88 (0.09) | 5.53 (0.09) | 289.065*** | 120,660.0*** |
| PostImpressionGillard | 6.87 (0.08) | 4.95 (0.09) | 6.21 (0.09) | 237.034*** | 133,106.5*** |
| PostTrustAbbott | 4.56(0.10) | 6.94 (0.09) | 5.57 (0.10) | 281.560*** | 121,786.5*** |
| PostTrustGillard | 6.84 (0.09) | 4.95 (0.09) | 6.19 (0.09) | 221.709*** | 136,689.0*** |
| PostLikeAbbott | 4.55 (0.09) | 6.31 (0.09) | 5.21 (0.09) | 177.225*** | 146,957.0*** |
| PostLikeGillard | 6.34(0.09) | 4.64 (0.09) | 5.71 (0.09) | 176.066*** | 147,372.5*** |
***P < 0.001: Kruskal–Wallis tests were conducted between all three groups, and Mann–Whitney u tests were conducted between groups 1 and 2. Preferences were measured for each candidate separately on 10-point Likert scales.