The old saying that one bad apple spoils the barrel suggests that an individual behaving badly can have a negative influence on the entire group. The idea now has some fresh scientific backing.
Researchers at the University of Amsterdam, led by Lucas Molleman, wanted to test whether seeing someone break a rule makes people copy them or go even further.
So before the 2024 presidential election in the United States, the team recruited 750 participants, roughly evenly split between Republicans and Democrats, to take part in an online experiment.









