9990 · 4.3.1
Group development and decision-making
**Group development** (4.3.1) opens 4.3. **Tuckman + Janis** are the essential pairing — stage model for team life cycle, groupthink for decision failure.
Need to know
What you need to know
- Five stages: Forming, Storming, Norming, Performing, Adjourning.
- Describes the socio-emotional and task-related development of a group over time.
- Originally four stages; 'Adjourning' was added later.
- The model is a framework, and groups may not progress linearly.
Explanation
Group development and decision-making
- Five stages: Forming, Storming, Norming, Performing, Adjourning.
- Describes the socio-emotional and task-related development of a group over time.
- Originally four stages; 'Adjourning' was added later.
- The model is a framework, and groups may not progress linearly.