“In a study of over 28,000 students in Switzerland, 62% of economics students gave money at least once to help students in need, compared with 69% of non-economics students. These differences were already present before the students took a single economics course: students with lower giving rates were drawn to economics. As freshmen, before their first lectures, 71% of the students who chose economics contributed, compared with 75% of non-economists.”
That’s...not a significant finding by any means.
Secondly, I would take these psychological studies with truckloads of salt. In what is possibly the most damning indictment of the social sciences: they have among the lowest replication rate of any of the sciences, and even after retraction (due to replication failure), the vast majority of positive citations continue after retraction, specifically in the social sciences: https://fantasticanachronism.com/2020/09/11/whats-wrong-with...