Why do people with low self-efficacy perform more poorly in training programs than those with high self-efficacy?

A person's self-efficacy is their perceived ability to complete a task. In other Words, it is how competent a person feels. In training programs, people with low self-efficacy may see themselves as unable to complete the training program successfully, influencing their performance. People with high self-efficacy generally feel more competent and capable, so it would make sense for them to complete training programs successfully or with higher scores, etc. When there is evaluation involved in the training program, people with low self-efficacy can also experience what is called evaluation apprehension (essentially fear of being judged), leading to greater self doubt and less than stellar performance.