Answer:
clinical
Step-by-step explanation:
Clinical psychologist is responsible for treating and diagnosing a person who is suffering from some intellectual disabilities and to help him or her improve with those conditions by looking or focusing on the person's sense of well-being and mental health. Clinical psychologists are more focused on solution-oriented and practical techniques to help others.
They help the client via interviews, psychological tests, observation, etc.
In the question above, Dr Horne is most likely a clinical psychologist.