What is the process by which individuals influence each other's attitudes and beliefs within a group?

The correct focus on the process by which individuals influence each other's attitudes and beliefs within a group is indeed group dynamics. This term encompasses the study of how individuals behave in a group setting, how group roles and interactions can shape perspectives, and how social influences can lead to changes in attitudes and beliefs. Group dynamics is significant in understanding conformity, leadership, and the overall psychological environment of a group.

In this context, interpersonal influence refers to the way individuals may affect one another's thoughts and feelings, but it doesn't encompass the broader processes and interactions that occur within a group. Similarly, social interaction describes the ways in which people communicate and engage with one another, but it does not specifically address the influences on attitudes and beliefs in a group context. Collective behavior pertains to the behavior of individuals in crowds or mass groups, often during spontaneous events, rather than the systematic influences present in regular group dynamics.

Understanding group dynamics allows us to evaluate how social norms are established and maintained, the impact of peer pressure, and how group cohesion can affect individual and group decision-making processes.