What defense mechanism is illustrated by Shauna's behavior after being scolded?

Displacement is illustrated by Shauna's behavior after being scolded because this defense mechanism involves redirecting emotions from a threatening target to a safer one. In this context, it suggests that after experiencing the negative feelings of being scolded, Shauna might express her frustration or anger in another, less threatening situation or towards someone who is not the source of her distress. This redirecting of emotions can be a way to cope with feelings that might be too challenging to express directly in the original situation.

Projection, repression, and regression are other defense mechanisms with distinct characteristics. Projection involves attributing one’s own undesirable feelings to someone else, repression means pushing unwanted thoughts or feelings out of conscious awareness, and regression refers to reverting to behavior characteristic of an earlier stage of development, typically as a way to cope with stress. While these mechanisms can also manifest after negative experiences, the specific act of displaced emotion makes it clear that this is the most accurate description of Shauna's behavior in this scenario.