Study Design. The Oswestry Disability Index (ODI) has become one of the principal
condition-specific outcome measures used in the management of spinal disorders. This …

Condition-specific health status measures are commonly used as outcome measures in
clinical trials and to assess patient progress in routine clinical practice. The expert panel that …

OBJECTIVES:: To assess multiple psychometric characteristics of a new stroke outcome
measure, the Stroke Impact Scale (SIS), using Rasch analysis, and to identify and remove …

Purpose: The present paper presents developments and advanced practical applications of
Rasch's theory and statistical analysis to construct questionnaires for measuring a person's …

Azouvi P, Olivier S, de Montety G, Samuel C, Louis-Dreyfus A, Tesio L. Behavioral
assessment of unilateral neglect: study of the psychometric properties of the Catherine …

Study Design. A prospective cohort design was used to evaluate the Functional Rating Index
in a multicentered setting with 139 participants. The Functional Rating Index is a self …

Variables present in an individual, for example, independence, pain, balance, fatigue,
depression and knowledge, cannot be measured directly (hence the term “latent” variables) …

Study Design. Multicenter randomized, double-blind, simulated therapy-controlled trial in a
cohort of patients with acute low back pain (LBP) due to lumbar disc herniation (LDH) …

OBJECTIVE: To develop and validate a pain scale that measures the extent of body pain.
METHODS: A total of 12,799 patients with rheumatoid arthritis (RA), osteoarthritis (OA), and …

Introduction During the past decades several rating scales have been developed to assess
the functional status of patients with low back pain. Methods We performed a search using …