purpose To test the assumptions underlying Likert scoring of visual function questionnaires.
methods Questionnaires were administered to 284 low-vision subjects by telephone. Each …

Aneurologist once told me that he found the subject of rating scales ''exceedingly dull'', while
another found the area ''abstruse''. I have therefore attempted to produce an overview that is …

purpose. To determine whether the VF-11 is a valid scale to measure visual functioning in
an Asian population with vision impairment. methods. Participants from the Singapore Malay …

Durante o século XX assistiuse nos países desenvolvidos a uma alteração no padrão das
doenças. Os principais problemas de saúde já não são a patologia aguda e as doenças …

Parkinson's disease (PD) is a progressive neurodegenerative disorder associated with
increasing disability and limitations in performance of activities of daily living (ADL) despite …

Purpose. The primary purpose of the study is to present and test a simple algorithm for
scoring visual function questionnaires (VFQs) that approximates person measure estimates …

OBJECTIVE: To validate the VF-11, a vision-specific function scale and determine the
relationship among vision impairment, ocular conditions, and vision-specific functioning in …

Peripheral neuropathies are a group of acquired and hereditary disorders presenting with
different distribution and nerve fiber class involvement. The overall prevalence is 2.4 …

Purpose: We assess parent-child agreement regarding child's health-related quality of life
(HRQoL) in children operated for congenital glaucoma (CG). Methods: A total of 121 …

The most commonly used models for estimating measures of latent variables from
polytomous rating scale data are the Andrich rating scale model and the Samejima graded …