The Impact of Vision Impairment Questionnaire: An Evaluation of Its Measurement Properties using Rasch Analysis
Ecosse L. Lamoureux; Julie Pallant; Konrad Pesudovs; Jennifer B. Hassell; Jill Keeffe
Investigative Ophthalmology & Visual Science
Vol. 47 · Issue No. 11
Partial Credit ModelDIFPsychologyRehabilitation
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