Figure 3
From: Imaginary pills and open-label placebos can reduce test anxiety by means of placebo mechanisms
Boxplot showing continuous grades of the participants per group. Every dot represents a participants’ grade with higher grades being better (ranging from 1.0 to 6.0). Note. Median is represented by the bold line within the box and upper/lower quartiles mark the end of the box. CG control group, IP imaginary pill, OLP open-label placebo.
