The field of Psychology that makes the most money per year is the (Psychiatrist) who has a Median Annual Salary of $177,250
Other fields of Psychology earn less and those are.
Clinical Psychologist
Military Psychologist
Industrial & Organizational Psychologist
Neuropsychologist
School Psychology
Geropsychologist
Experimental Psychologist
If you really want to earn the money in the field of Psychology you need to work as a Psychiatrist since they're the highest paid in Psychology.