"Proactiff Digital Healthcare Center for Epidemiologic Studies Depression Scale (CES-D) Screening Tool is a screening test for depression and depressive disorder. The CESD-R measures symptoms defined by the American Psychiatric Association.

The Center for Epidemiologic Studies Depression Scale (CES-D) screening tool is a useful measure of the level of depressive symptoms, and may not be a good tool for screening for clinical depression or major depression.

The Center for Epidemiologic Studies - Depression (CES-D) scale includes twenty items comprising six scales reflecting major facets of depression: depressed mood, feelings of guilt and worthlessness, feelings of helplessness and hopelessness, psychomotor retardation, loss of appetite, and sleep disturbance.
Psychometrics:

The CES-D has been shown to be a reliable measure for assessing the number, types, and duration of depressive symptoms across racial, gender, and age categories."