Final answer:
High-performance teams may be more likely to form when a manager hand-selects members, the team halo effect can make teams seem more effective than they are, and majority rule can struggle with more than two choices. Gender diversity in teams might improve performance, suggesting complex factors at play.
Step-by-step explanation:
Research suggests that high-performance teams are more likely to develop when the manager hand-selects team members, which may be due to the manager's ability to create a team with complementary skills and a shared vision. However, whether this is universally true or not is a matter of debate and can depend on many factors such as team dynamics, individual performance, and organizational culture. In the context of the team halo effect, teams may appear to work better than they actually do because successes are often attributed to the team as a whole, while failures are pinned on individuals.
When it comes to majority rule in decision-making, it is true that it can fail to produce a preferred outcome when there are more than two choices. This is because the majority vote might be split among several options, leading to a lack of a clear winner.
Diverse teams, such as those with a mix of gender, can experience both challenges in communication and interpersonal relationships as well as benefits like an increased skill set. Studies suggest that a gender-balanced team may lead to better team performance, though the exact mechanisms for this improvement are complex and may include factors like interpersonal relationships, learning, and skill mixes.