Final answer:
Group formation benefits primarily include social support and goal achievement, with emotional and task-focused roles being played by primary and secondary groups, respectively.
Step-by-step explanation:
The main benefits of group formation fall into two main areas: social support and goal achievement. Social support refers to the emotional and practical resources provided by the group, often seen in primary groups where members share long-term, complex relationships and engage in face-to-face interactions. These groups are crucial for meeting emotional needs and fostering a sense of belonging. On the other hand, goal achievement relates to the instrumental function of secondary groups, which are generally larger, more impersonal, and often task-oriented. Such groups are designed to achieve specific objectives, like in a classroom or office setting. Group leaders also contribute to these areas by providing different types of incentives and leadership styles to harness the collective effort towards common objectives. Moreover, group participation enhances civic engagement, allowing individuals to amplify their concerns and engage more effectively in social and political spheres.