Differential Item Functioning of the Mini-BESTest Balance Measure: A Rasch Analysis Study.

ABSTRACT: The Mini-Balance Evaluation Systems Test (Mini-BESTest), a 14-item scale, has high content validity for balance assessment. This study further examines the construct validity of the Mini-BESTest with an emphasis on its measurement invariance. The Mini-BESTest was administered to 292 neurological patients in two sessions (before and after rehabilitation) and evaluated with the Rasch analysis (Many-Facet Rating Scale Model: persons, items, sessions). Categories' order and fit to the model were assessed. Next, maps, dimensionality, and differential item functioning (DIF) were examined for construct validity evaluation. DIF was inspected for several clinically important variables, including session, diagnosis, and assistive devices. Mini-BESTest items had ordered categories and fitted the Rasc

SUBMITTER: Caronni A 

PROVIDER: S-EPMC10049698 | biostudies-literature | 2023 Mar

REPOSITORIES: biostudies-literature