Fig 1. Asch line task: Correct answers by condition and trial.

Note: Percent of correct answers by experimental group and trial including 95% confidence intervals. The numbers on top of the bars denote the trial numbers. “correct” stands for uncritical trials, “false” for critical trials. “easy” denotes easy trials with big differences between the lines, and “hard” denotes more difficult trials with smaller differences between the lines. The numbers between the bars denote the difference in proportions between the groups in percentage points. One-sided T-tests: * = p < 0.05. N without incentive (no) = 99, n with incentive (yes) = 103.