marginally significantp ≈ 0.062
Average offers rise slightly from Part 1 to Part 2 in the baseline and fall slightly in the other two treatments, though these differences are either insignificant or marginally significant (two-sided Wilcoxon signed-ranks test, matching-group-level data, p ≈ 0.062 in the baseline; p ≈ 0.078 in the KA treatment, p > 0.20 in the UA treatment).