a significant trendp < .001
A linear mixed model showed a reliable main effect of source, χ 2 (2) = 26.74, p < .001, and a significant trend for the delta term of the model, χ 2 (1) = 36.39, p < .001: Participants were more influenced by other people (i.e., either teenagers or adults) than by the random computer (teenagers – computer: contrast = 0.90, SE = 0.19, p Bonf < .001; adults – computer: contrast = 0.64, SE = 0.15, p Bonf < .001; for all contrasts, see Table S9 in the Supplemental Material ), and increasing distance from the norms (i.e., the Δ) predicted increased magnitude of donation adjustment (estimate = 0.85, SE = 0.14, p < .001).