Measuring everyday functional competence using the Rasch assessment of everyday activity limitations (REAL) item bank.

ABSTRACT:

Objective

Traditional patient-reported physical function instruments often poorly differentiate patients with mild-to-moderate disability. We describe the development and psychometric evaluation of a generic item bank for measuring everyday activity limitations in outpatient populations.

Study design and setting

Seventy-two items generated from patient interviews and mapped to the International Classification of Functioning, Disability and Health (ICF) domestic life chapter were administered to 1128 adults representative of the Dutch population. The partial credit model was fitted to the item responses and evaluated with respect to its assumptions, model fit, and differential item functioning (DIF). Measurement performance of a computerized adaptive testing (CAT) algorithm w

SUBMITTER: Oude Voshaar MAH 

PROVIDER: S-EPMC5655561 | biostudies-literature | 2017 Nov

REPOSITORIES: biostudies-literature