Can short PROMs support valid factor-based sub-scores? Example of COMQ-12 in chronic otitis media.

ABSTRACT:

Purpose

Interpretable factor solutions for questionnaire instruments are typically taken as justification for use of factor-based sub-scores. They can indeed articulate content and construct validities of a total and components but do not guarantee criterion validity for clinical application. Our previous documentation of basic psychometric characteristics for a 12-item patient-reported outcome measure in adult chronic otitis media (COMQ-12) justified next appraising criterion validity of sub-scores.

Methods

On 246 cases at 1st clinic visit, we compared various classes of factor solution, concentrating on the best-fitting 3-factor ones as widely supported. Clinical data offered two independent measures as external criteria: binaural hearing (audiometric thresholds measured v

SUBMITTER: Bukurov B 

PROVIDER: S-EPMC9522295 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature