An employee's ability to perform a task is a function of all of the following EXCEPT;

The ability of an employee to perform a task largely relies on their knowledge, skill, and experience. Knowledge refers to the information and understanding an employee has regarding a specific task or subject area, which is essential for effective performance. Skills are the practical abilities developed through practice and training, allowing a person to execute tasks competently. Experience plays a critical role as well, as it entails the accumulation of knowledge and skills over time through practical involvement in similar tasks or environments.

Commitment, while important in fostering motivation and dedication to a task, does not directly influence the technical ability to perform the work. An employee can be highly committed but still lack the necessary knowledge, skills, or experience to execute a task effectively. Thus, commitment is indeed the factor that does not directly contribute to the ability to perform a task, which is why it is the correct choice in this context.