Which stage in group development is marked by uncertainty among members?

The stage in group development marked by uncertainty among members is the forming stage. During this initial phase, group members come together and start to get acquainted with each other. There's typically a lack of clarity regarding roles, expectations, and how the group will function. Members may feel anxious or hesitant as they try to understand their place within the group dynamic, establish relationships, and identify the group's goals. This uncertainty is a natural part of the team-building process as individuals navigate the social aspects of working together for the first time. As members begin to define their roles and develop a sense of trust, they can move forward to more advanced stages like storming, norming, and performing, where the group becomes more cohesive and effective.