Groups consist of two or more interdependent individuals who work together to achieve objectives. Formal groups are established by organizations to complete tasks and meet goals, such as airline crews or project teams, while informal groups form based on friendships and interests, like employees who meet for lunch. Both formal and informal groups can influence employee behavior and performance at work.

2. KEY TERMS OF GROUP BEHAVIOUR IN AN
OB
•Group
•Group behaviour
•Formal group
•Informal group

3. GROUP
•Is a two or more individuals interacting and
interdependent individuals who have come
together to achieve particular objectives.
•Groups affect employee behaviour and
performance.

4. GROUP BEHAVIOUR
•A group behaviour can be stated as a course
of action a group takes as a family.
For example: Strike

5. FORMAL GROUP
•These are types of work groups created by the
organization and have designated work
assignments and established tasks.
•The behaviour of such groups is directed toward
achieving organizational goals.
Example of formal groups are; Airline crew
members, a board of directors, a sports team or a
project team.

6. INFORMAL GROUP
• Informal group is neither formally structured nor organizationally
determined.
• These are groups formed with friendships and common interest.
• In work environment, informal groups meet the need for social
contact.
Example, four employees from different departments who
regularly meet for lunch or who meets to play squash on
weekends.
• These types of behaviour though informal deeply affect the
behaviour performance.