Suitability of the animated activity questionnaire for use as computer adaptive test: establishing the AAQ-CAT.

ABSTRACT:

Purpose

The animated activity questionnaire (AAQ) is a computer-based measure of activity limitations. To answer a question, patients choose the animation of a person performing an activity that matches their own level of limitation. The AAQ has not yet been tested for suitability to be applied as computer-adaptive test (CAT). Thus, the objective of this study was to develop and evaluate an AAQ-based CAT to facilitate the application of the AAQ in daily clinical care.

Methods

Patients (n = 1408) with hip/knee osteoarthritis from Brazil, Denmark, France, The Netherlands, Norway, Spain, and the UK responded to all 17 AAQ items. Assumptions of item-response theory (IRT) modelling were investigated. To establish item parameters for the CAT, a graded response model was estimated.

SUBMITTER: Liegl G 

PROVIDER: S-EPMC10329068 | biostudies-literature | 2023 Aug

REPOSITORIES: biostudies-literature