a) Stage of group development:
The 12 Angry Men provides good examples to demonstrate 4 stages of group dynamics. First stage of Group Dynamics is forming. In this stage, members don’t have clear idea and are not sure about their role and responsibilities. When 12 members of jury entered the room to vote, they were not clear about their roles. Some of them wanted to vote guilty, one person wanted to discuss while some were really not bothered and wanted to leave as soon as possible. Team members did not know each other’s opinions & reasons and needed direction. One Juror took charge and asked others to vote on the issue. This was the forming stage.
As they started to vote, some members just voted as they did not want to go against others. Juror 8 voted against other 11 persons. During secret vote, one person changed his vote. This led all the members to argue and team members started fighting. Some members got personal and accused each other. There was lot of distraction because of personal commitments, emotional issues, etc. This was the storming stage.
Juror 8 helped to focus on facts and explained the seriousness of the matter. Also, Juror 9 helps to bring some important observations in the picture. This helps other members to review their reasoning and people start giving second thoughts to their vote. Ultimately, more members understood the point of view of Juror 8 and team earned clear direction to proceed and arrive at consensus. This was the norming stage.
In the later stage, many people shared various point of views to analyze the details for testimonies and other evidences. Almost all the team members were completely focused about the case and team was determined to make a logical decision. This was performing stage.
b) Impact of perception on decision-making:
I could see many examples of Perception in this movie. For example, Juror 3 was having tough time with his son. (His son was young of similar age group as