- Participants’ perceptions of the severity of their depressive symptoms.
I feel sad.
I am very worried.
I feel worried.
I feel lonely.
I have been more irritable than usual.
I feel hopeless about my future.
- Fogg, L., J. Zinke, and E. Spertus (2000) , "Development of the RBO-31: Reliability and sensitivity to change", Chicago, Rush University, Department of Medicine.