The effect of directive leadership is most effective when the:

Leader is present in the environment

Explanation:

Directive leadership is a form of leadership where a leader gives instructions, set objectives for his or her employees. Here, there are expectations on the path of those being lead hence act according to the dictates of their leaders.

In a scenario where tasks given to employees are hard or where the employees are unskilled or inexperienced, direct leadership is most effective to lead them so that they can be productive.

Where a leader is present in the working environment, employees tend to increase their productivity , while reverse is the case where a leader is not present because employees work based on supervision and direction under directive leadership.