| Tell lies | Detect lies | Tell truths | Believe others | Lies | Truths | Total |
First session (before the interrogation) | |||||||
Mean | 47.5 | 63.8 | 68.0 | 58.8 | 55.6 | 63.4 | 59.5 |
SD | 20.2 | 20.1 | 16.8 | 20.0 | 16.5 | 13.9 | 11.4 |
Second session (after the polygraph test) | |||||||
Mean | 49.8 | 63.8 | 67.8 | 59.9 | 56.8 | 63.8 | 60.3 |
SD | 20.9 | 19.7 | 16.8 | 19.3 | 17.2 | 12.1 | 11.2 |
Across sessions | |||||||
Mean | 48.6 | 63.8 | 67.9 | 59.3 | 56.2 | 63.6 | 59.9 |
SD | 18.7 | 18.4 | 15.5 | 18.2 | 15.6 | 12.1 | 10.6 |