The World Mental Health Survey Initiative
National Comorbidity Survey
World Health Organization Health and Work Performance Questionaire
The World Health Organization World Mental Health Composite International Diagnostic Interview (WHO WMH-CIDI)
The WHO WMH-CIDI is a comprehensive, fully-structured interview designed to be used by trained lay interviewers for the assessment of mental disorders according to the definitions and criteria of ICD-10 and DSM-IV. It is intended for use in epidemiological and cross-cultural studies as well as for clinical and research purposes. The diagnostic section of the interview is based on the World Health Organization's Composite International Diagnostic Interview (WHO CIDI, 1990).

The WHO WMH-CIDI allows the investigator to:
- Measure the prevalence of mental disorders
- Measure the severity of these disorders
- Determine the burden of these disorders
- Assess service use
- Assess the use of medications in treating these disorders
- Assess who is treated, who remains untreated, and what are the barriers to treatment