R. T. Williams

Psychometric properties of the Veterans Affairs Low-Vision Visual Functioning Questionnaire.

Robert W Massof, Janet P Szlyk, R. Massof, 2004, Investigative ophthalmology & visual science.

Low Vision Rehabilitation in Patients With Visual and Cognitive Impairment

R. T. Williams, W. Jay, K. E. Hagerman, 2005 .

Measuring outcomes of vision rehabilitation with the Veterans Affairs Low Vision Visual Functioning Questionnaire.

Robert W Massof, Janet P Szlyk, R. Massof, 2006, Investigative ophthalmology & visual science.

Use of Rasch person-item map in exploratory data analysis: a clinical perspective.

Robert W Massof, Janet P Szlyk, Judith Babcock-Parziale, 2004, Journal of rehabilitation research and development.

Performance of the Veterans Affairs Low Vision Visual Functioning Questionnaire

R. Massof, J. Szlyk, J. Stelmack, 2004 .