Brianna is a junior in high school who has a learning disability an an external locus of control. when she succeeds on a homework assignment in math, she is most likely to attribute her success to

Brianna is most likely to attribute her success to external factors like luck, destiny, help form others or anything outside her influence.

Explanation:

To understand this answer we need to remember what external locus of control is. All right here we go External locus of control is a perspective people have when they believe the results of their actions are determined by the influence of factors that were not caused by them. So, they leave it to luck, destiny, someone else's cause, etc. In this case, she is going to do that because the contrary would be an internal locus of control and that would lead to believe her results are attributed to her actions.