Students who don’t carry their weight in a group continue to be a big concern for faculty who use groups and for students who participate in them. Most often faculty and students assume that these students are lazy and happy that they’ve landed in the group with others willing to do the work. And sometimes that’s the case. Some students are lazy. But research documents that this isn’t true of all students who aren’t participating in groups. Here are a few highlights from a study that considered how social-comparison concerns might prevent participation and approaches that help alleviate those concerns.