marginally significantp = .060
Participant height (added as a fixed effect to the intercept-only model) had a marginally significant effect on coins kept for self in the ultimatum game, Wald χ 2 (1) = 3.53, b = 0.005, SE = 0.003, 95% CI = [< 0.001, 0.011], p = .060 (QICc = 22.93), suggesting a trend in which shorter participants kept more coins for themselves.