Final answer:
Karen is a clinical psychologist, as this field specializes in the diagnosis and treatment of psychological disorders.
Step-by-step explanation:
Karen, who received a PhD in psychology and treats psychological disorders, is best classified as a clinical psychologist. Clinical psychology is a field within psychology that focuses on the diagnosis and treatment of psychological disorders as well as other problematic behavioral patterns.
Given this information, Karen's role involves working directly with patients to assess, diagnose, and treat mental health issues, which aligns with the typical responsibilities of a clinical psychologist. Classified as a clinical psychologist. Clinical psychology focuses on the diagnosis and treatment of psychological disorders and problematic patterns of behavior. It is considered an applied area within psychology, with clinicians often engaging in scientific research as well.