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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

  1. Five stages: Forming, Storming, Norming, Performing, Adjourning.
  2. Describes the socio-emotional and task-related development of a group over time.
  3. Originally four stages; 'Adjourning' was added later.
  4. The model is a framework, and groups may not progress linearly.