Use this memory aid for the diagnostic criteria of Major Depression. In addition to depressed mood, five of the following symptoms must be depressed or abnormal for a period of greater than 2 weeks. Some people also use this memory aid when following people suffering from depression and monitoring response to treatment.
memory aid: SIGECAPS
S - Sleep - insomnia/hypersomnia
I - Interest - decreased
G - Guilt
E - Energy - decreased
C - Concentration - decreased
A - Appetite - decreased/increased
P - Psychomotor - retardation/agitiation
S - Suicide - ideation, intent, plan
The Hamilton Depression Rating Scale has been widely used in research and is an example of a tool that evaluates symptoms of depression, some people use tools like this in practice to monitor response to treatment.