What refers to the level of task difficulty that a person believes they can attain?

The term that refers to the level of task difficulty that a person believes they can attain is magnitude. In the context of self-efficacy, magnitude reflects an individual's confidence in their ability to successfully perform a task at varying levels of difficulty. This concept is crucial in understanding motivation and goal-setting, as individuals often set their goals based on their perceived capabilities. When someone has a high sense of magnitude, they are likely to take on more challenging tasks, believing that they can achieve them, which can lead to greater performance and satisfaction. In contrast, a low sense of magnitude may lead to avoidance of difficult tasks and a lack of motivation.

Other terms like locus of control refer to the belief about the extent to which individuals can control the events affecting them, while strength pertains to the intensity of the belief or attitude, and personality generally describes a person's characteristics and traits.