US High School Psychology Complete Practice Exam 2025

The primary role of the ego in Freud's model of personality is to mediate between the desires of the id and the moral standards imposed by the superego. The id represents instinctual drives and desires, seeking immediate gratification without regard for reality or consequences. In contrast, the superego embodies ethical considerations and societal rules, striving for moral perfection. The ego operates in the reality principle, which assesses the situation and allows for the satisfying of the id's desires in a socially acceptable manner. This negotiation helps maintain a balance between basic instincts and moral values, allowing individuals to function effectively within society.

The other choices reflect misunderstandings of the ego's function. The ego does not simply suppress all desires or fulfill urges directly; rather, it finds a compromise that aligns with reality and moral standards. Additionally, while evaluating thoughts and actions is part of the ego's responsibilities, the central focus is on its mediating role, rather than merely evaluating or suppressing behavior.