Probably more relevant to say this experiment was done on college freshmen, but yes, it would be interesting to see differences by country/etc. provided you can

Probably more relevant to say this experiment was done on college freshmen, but yes, it would be interesting to see differences by country/etc. provided you can provide uniform experimental conditions (at a minimum, keep participants in the dark as to the composition of the experimental group, the fact that it's being done worldwide and comparisons will be made of their nation vs. others, etc).