The study aimed to see if showing a group as diverse can help improve trust levels between different groups. The researchers tried different ways to make people think their own group was diverse. However, they did not find strong proof that this increased trust between groups. When they looked at all the studies together, they did see a small effect showing that seeing your group as diverse can slightly help improve trust. This suggests that diversity in a group might make a tiny difference in building trust between different groups. But, the effect is very small, and it's not a big solution for improving trust between different groups.