Fiona helps students with attention deficit hyperactivity disorder (ADHD) develop effective study regimens and strategies. Fiona is most likely a(n) Counseling psychologist.
Explanation:
A doctor is a physician, which implies someone has a medical education, with specialist training in diagnosis and treatment mental health disorders such as ADHD, mood disorders and anxiety.
Psychologists analyse the current conditions and concerns of their patients and then give advice. Since people with serious mental health disorders will generally not interact with doctors, their patients actually visit them to resolve marriages, alcohol use, job concerns, and other problems.