Documentation

The MHAS documentation section provides access to various documents prepared by the study research team, including methodological documents, data description, questionnaires, codebooks and more. All documents are available in Adobe PDF Format.

Survey Design

Documents on the MHAS sample design, fieldwork protocols, weights, and response rates.

Data Descriptions

Information on each dataset including description of content, advice on using the data, and cross-wave merging.

Questionnaires

Paper version of the core (direct and proxy interviews) and next-of kin questionnaires for all waves.

Question Concordance

Comparison of all questions included in the MHAS datasets collected from 2001 through 2021, by section of the core interview questionnaire.

Codebooks

Codebooks for the MHAS by section of the core and the next-of-kin questionnaires, for each wave of the study.