The study found that when forming impressions of others, people rely more on moral characteristics than on sociability or competence. This means that when we learn new information about someone that contradicts our initial impression, we are more likely to change our opinion based on their morality. The researchers conducted three experiments where participants had to update their impressions of individuals after receiving new information. The results showed that moral information had the biggest impact on changing impressions, compared to sociability or competence. This suggests that morality plays a significant role not only in forming first impressions but also in updating them during social interactions.