Final answer:
Project teams can create a team contract to encourage teamwork and clarify communications, which is essential for aligning ideas, preventing disputes, and managing conflicts. The team halo effect leads to a perception that a team is more effective than it is in reality.
Step-by-step explanation:
To promote teamwork and clarify team communications, project teams can create a team contract. A team contract is a written agreement that outlines the roles and responsibilities of each team member, establishes clear communication protocols, and sets expectations for professional behavior within the team. This collaborative document helps ensure that team members' ideas are aligned and promotes sustainability of the project by addressing potential disputes and conflicts proactively.
Team contracts facilitate building trust through good communication and aid in effective negotiation skills among team members, which are critical to the advancement of collaborative projects. While the other options, like a project website, team-building plan, and team roster, are useful tools in their own right, a team contract is directly linked to the promotion of teamwork and clarification of communications.
In regards to the effect of the team halo effect, option a., that teams appear to work better than they do, is accurate. The team halo effect can cause the perception that a team is functioning more effectively than it actually is, due to the positive reputation of the team or its members overshadowing actual performance.