Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Prexisting differences between the faces in difficulty and unpleasantness and differences in the accuracy with which the subjects made the two faces during the experiment.
| Pain Face Mean (SD) |
Control Face Mean (SD) |
F (1,28) | P | |
|---|---|---|---|---|
| Difficulty | 4.35 (.24) | 3.07 (.20) | 24.47 | <0.01 |
| Unpleasantness | 3.69 (.21) | 2.59 (.24) | 37.04 | <0.01 |
| Accuracy | 5.00 (.48) | 4.56 (.59) | 20.04 | <0.01 |
