Answer: Same field
Step-by-step explanation:
The psychopathology and the abnormal psychology are both related to the similar psychology field or the branch which is related to the study of emotions, feelings and the behavior of the person based on the environmental stimuli.
According to the question, Dr badeaux and the Dr carruthers both specialized in the same field as psychopathology and it basically deals with the personality disorder and the OCD ( Depression to obsessive-compulsive) disorder.
Therefore, Same field is the correct answer.