Where can I find complete information on NSDUH survey methodology and design?

The annual Methodological Summary and Definitions (MSD) report includes:

• A basic description of the survey,
• A discussion of statistical measures and measurement,
• Special topics for the given year,
• An overview of alternate sources of drug use and mental health data, and
• A glossary of key terms

Other methodological reports can be found as part of the annual Methodological Resource Book (MRB) collection. The MRB generally includes:

• The NSDUH questionnaire, including screener specifications, show cards, and pill images;
• The Field Interviewer Manual;
• The Statistical Inference Report, with guidelines and sample code for analyzing NSDUH data;
• The Sample Design Report, which gives details about the sampling design;
• The Sample Experience Report, which details how the sampling design was implemented in the field;
• Reports on the sampling weight calibration;
• The Editing and Imputation Report; and
• The Data Collection Final Report.

Reports are released as they are produced, so more recent MRBs may not yet include all reports.