The study looked at how people decide to trust new group members based on past experiences with ingroup and outgroup members. They found that individuals use previous interactions to decide how much to trust others, not just sticking with their initial feelings about groups. The researchers discovered that people adjusted their trust towards new individuals depending on whether the past interactions were positive or negative. The findings suggest that individuals do not always rely on their first impressions of a group but instead adjust their behaviors based on their past encounters with ingroup and outgroup members.