The behavioural theory of leadership refers to the various styles or approaches that a leader can adopt to manage and direct their team effectively. According to Fiedler's Contingency Theory, leadership effectiveness is dependent on the match between the leader's style and the situational factors. The assignment highlights several types of leadership styles, including directive, autocratic, transformational, transactional, and servant leadership. It also discusses the advantages and disadvantages of each style, as well as their applicability in different situations. Moreover, it touches upon trait theories of leadership, which emphasize the importance of a leader's personality, values, and skills in influencing their followers.