Psychometric validation techniques applied to the IND-VFQ-33 visual function questionnaire: the Hyderabad ocular morbidity in the elderly study (HOMES)

Psychometric validation techniques applied to the IND-VFQ-33 visual function questionnaire: the Hyderabad ocular morbidity in the elderly study (HOMES)

Abstract Background Over 2 billion people suffer from vision impairment or blindness globally, and access to validated visual measurement tools in imperative in accurately describing and managing the burden of eye disease. The present study applies contemporary psychometric validation techniques to...

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Bibliographic Details
Main Authors: William Mitchell, Srinivas Marmamula, Nazlee Zebardast, Weiwen Ng, Joseph J. Locascio, Thirupathi Kumbam, Satya Brahmanandam, Navya Rekha Barrenkala
Format: Article
Language:English
Published: BMC 2021-02-01
Series:BMC Medical Research Methodology
Subjects:
Ophthalmology
Psychometric validation
Factor analysis
Item response theory
Differential item functioning
Online Access:https://doi.org/10.1186/s12874-021-01217-w

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