Measuring functioning and disability using household surveys: metric properties of the brief version of the WHO and World Bank model disability survey.

ABSTRACT:

Background

The Model Disability Survey (MDS) is the current standard recommended by WHO to collect functioning and disability data. Answering calls from countries requesting a version to be implemented as a module that could be integrated into existing surveys and be used for monitoring disability trends and for data disaggregation, WHO developed the brief MDS. The objectives of this paper are to evaluate the metric properties of the disability metrics generated with the Brief MDS and the precision of the Brief MDS in comparison with the full MDS.

Results

The partial credit model, a unidimensional model for polytomous data from the Rasch family, was applied to evaluate psychometric properties using data from national MDS implementations in Chile (N = 12,265) and in Sri Lanka

SUBMITTER: Sabariego C 

PROVIDER: S-EPMC8273944 | biostudies-literature | 2021 Jul

REPOSITORIES: biostudies-literature