Leadership is the process of directing and influencing the task related activities of group members. Mullins (2002) defines leadership essentially as a relationship through which one person influences the behaviour or actions of other people.
The concept of power is inherently implied in the process of leadership. Power, as we understand the term in this context, is one’s ability to exert influence, i.e. to change the attitude or behaviour of individuals and the groups. There are five possible bases of power as identified by French and Raven (1968) which are: reward power, coercive power, legitimate power, referent power, and expert power. The greater the number of these power sources available, the greater is one’s potential for effective leadership.