Estimated probability that children in each society will punish selfish third parties (a,c,e,g,i,k) and prosocial third parties (b,d,f,h,j,l), across the three norm primes. Solid lines represent the estimated probabilities for Punish-Either, dotted lines represent the estimated probabilities for Punish-Selfish and short/long dashed lines represent estimated probabilities for Punish-Prosocial. Shaded regions represent 95% confidence intervals for these estimates. (Online version in colour.)