Calibrating the Impact of Vision Impairment (IVI): Creation of a Sample-Independent Visual Function Measure for Patient-Centered Outcomes Research | Zendy

Judith E. Goldstein | Zendy; Eva Fenwick | Zendy; Robert P. Finger | Zendy; Vijaya K. Gothwal | Zendy; Mary Lou Jackson | Zendy; Ecosse L. Lamoureux | Zendy; Gwyneth Rees | Zendy; Robert W. Massof | Zendy

Open Access

Calibrating the Impact of Vision Impairment (IVI): Creation of a Sample-Independent Visual Function Measure for Patient-Centered Outcomes Research

Author(s) -

Judith E. Goldstein,

Eva Fenwick,

Robert P. Finger,

Vijaya K. Gothwal,

Mary Lou Jackson,

Ecosse L. Lamoureux,

Gwyneth Rees,

Robert W. Massof

Publication year - 2018

Publication title -

translational vision science and technology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.508

H-Index - 21

ISSN - 2164-2591

DOI - 10.1167/tvst.7.6.38

Subject(s) - rasch model , differential item functioning , item response theory , medicine , visual impairment , pooling , reliability (semiconductor) , visual acuity , rating scale , analysis of variance , covariate , patient reported outcome , psychometrics , audiology , clinical psychology , psychology , statistics , developmental psychology , quality of life (healthcare) , artificial intelligence , mathematics , computer science , psychiatry , ophthalmology , power (physics) , physics , nursing , quantum mechanics

Validity testing of the IVI show that we can combine disparate data sets of patient responses to calibrate item measures and response category thresholds, and provide to others for use in comparing patients across clinical trials and on an individual basis.

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