Guttman Scale Analysis of the Distance Vision Scale
نویسندگان
چکیده
منابع مشابه
Guttman scale analysis of the distance vision scale.
PURPOSE The Distance Vision Scale (DVS) is a self-assessment of visual acuity (VA). Like VA testing in which letter reading becomes progressively difficult through the test, DVS questions have a hierarchy of difficulty (Guttman scale). The aims were to determine whether the DVS fulfills Guttman scaling criteria and to test the relationship between DVS score and VA in a cataract population. ME...
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ژورنال
عنوان ژورنال: Investigative Opthalmology & Visual Science
سال: 2009
ISSN: 1552-5783
DOI: 10.1167/iovs.08-3330