marginally significantp = 0.08
Comparing VAS ratings across days, we found a marginally significant difference in pretest ratings between the first session and the third session ( Z = −1.75, p = 0.08); however, the posttest ratings did not show a significant across-session difference ( Z = −0.41, p = 0.68), possibly because the analgesic effect in each session masked the across-session differences.