What term describes the importance of group membership and the commitment felt by its members?

The term that describes the importance of group membership and the commitment felt by its members is cohesiveness. This concept refers to the extent to which members of a group stick together and remain united in their pursuit of common goals. Cohesiveness fosters a sense of belonging, enhances interpersonal relationships within the group, and can significantly influence group dynamics and performance. When members feel a strong connection to their group, they are more likely to be motivated, productive, and willing to contribute to the group's objectives.

Affiliation, while related, primarily refers to a connection with others or the desire to form social bonds, without necessarily implying a high level of commitment or unity towards a specific group's goals. Engagement focuses more on the involvement and emotional investment of individuals within their roles or tasks, but doesn't capture the collective aspect of group commitment as cohesiveness does. Participation indicates the act of taking part in activities or discussions but does not inherently reflect the emotional ties and shared commitment that define cohesiveness.