Question

میزان باور فرد به اینکه موفق عمل کند؟

Answer 1

The extent to which one believes in performing well

The extent to which one believes in being successful

Answer 2

The scale / extent / degree of an individual's believing that he is acting successfully. / he is successful.

The level / deal / extent of an individual's belief / trust in his being successful.

With +1 for Mr.Hamzeluyi's good answer.

Answer 3

Self efficiency levels