Which term refers to the belief in one’s capability to successfully perform work tasks?

The correct term that refers to the belief in one’s capability to successfully perform work tasks is competence. This concept is deeply rooted in the notion of self-efficacy, which posits that individuals who have a strong sense of competence are more likely to take on challenging tasks, persist in the face of difficulties, and ultimately perform better. When employees believe in their abilities, they are empowered to engage fully in their work, seek out training opportunities, and feel capable of achieving their goals.

In contrast, the other choices represent different concepts. Impact pertains to the perceived effect or influence one has within an organization or team, but it does not directly speak to personal capabilities. Meaningfulness relates to the sense that one’s work has significance or purpose, which is important for motivation but again does not directly address one's self-belief in their capabilities. Self-determination refers to the ability to make choices and direct one’s own life, which, while related to autonomy, differs from the specific belief in personal competence regarding job tasks.