Fig. 1.

Association between relational mobility and decisions in the three trolley problem variants from (A) the separate country-level regressions by Awad et al. (2) (n = 23 countries) and (B) our Bayesian multilevel logistic regression using the complete dataset (n = 182,780 decisions). This model accounts for geographic and linguistic distance between countries and incorporates measurement error on both the country-level probability of taking action (95% credible interval represented as vertical lines around points) and the country-level relational mobility variable (± 1 SE represented as horizontal lines around points). Lines reflect posterior median regression lines, and shaded areas reflect 95% credible intervals. We found no relationship between relational mobility and sacrificial behavior in the Switch and Loop dilemmas, although the positive relationship was robust in the Footbridge dilemma.