The National Institutes of Health (NIH) includes visual impairment in the 10 most prevalent causes of disability in America. As rehabilitation programs have the potential to restore independence and improve the quality of life for affected persons, NIH research priorities include evaluating their effectiveness. This paper demonstrates a clinical perspective on the use of the Rasch person-item map to evaluate the range and precision of a new vision function questionnaire in early analysis (prior to full sample). A self-report questionnaire was developed to measure the difficulty that persons with different levels of vision loss have performing daily activities. This 48-item Veterans Affairs Low-Vision Visual Functioning Questionnaire (VA LV VFQ-48) was administered to 117 low-vision patients. Preliminary analysis indicates that the questionnaire items are applicable to persons of differing abilities. The Rasch person-item map demonstrates that the field-test version of the VA LV VFQ-48 has good range and is well centered with respect to the person measure distribution. Construct validity and reliability are also demonstrated.
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http://dx.doi.org/10.1682/jrrd.2004.02.0233 | DOI Listing |
Int J Spine Surg
November 2024
Advanced Orthopaedics, Spine Center, Altamonte, FL, USA.
Background: The International Society for the Advancement of Spine Surgery hosted the first of a series of 4 webinars on endoscopic spine surgery techniques, focusing on end§oscopic discectomy, foraminotomy, instrumented endoscopic fusion, standalone lumbar interbody fusion with innovative materials, and the role of patient feedback in awake procedures. This series aims to share knowledge and discuss the complexities and clinical evidence of modern endoscopic spine surgery.
Objective: To analyze the level of surgeon endorsement for the presented endoscopic spine surgery techniques before and after the webinar, utilizing polytomous Rasch analysis, and to evaluate the potential for these insights to inform clinical guideline recommendations.
Clin Exp Optom
October 2024
Elite School of Optometry, Unit of Medical Research Foundation, Chennai, India.
Clinical Relevance: A validated questionnaire measures the construct accurately, helps clinician to support decision making, facilitates assessment and monitoring of patients, guides clinical trial and promotes patient-centred care.
Background: To assess the psychometric properties of the Quality of Life in Children with Vernal Keratoconjunctivitis (QUICK) questionnaire among Indian children with Vernal Keratoconjuntivitis (VKC) using Rasch analysis.
Methods: This study used a questionnaire validation study design.
Geriatr Nurs
December 2024
School of Health Studies, Northern Illinois University, DeKalb, IL, 60115, USA.
This study used Rasch models to evaluate the psychometric properties of a self-efficacy instrument focused on psychosocial aspects of palliative care developed for nursing assistants (NAs). NAs from 6 skilled nursing facilities in Illinois, U.S.
View Article and Find Full Text PDFPLoS One
September 2024
Department of Quantitative Methods and Statistics, Comillas Pontifical University, Madrid, Spain.
The Inventory of Personality Organization-Reality Testing Subscale (IPO-RT) and Belief in Science Scale (BIS) represent indirect, proxy measures of intuitive-experiential and analytical-rational thinking. However, a limited appraisal of factorial structure exists, and assessment of person-item functioning has not occurred. This study assessed the IPO-RT and BIS using confirmatory factor analysis (CFA) and Rasch analysis with a sample of 1030 participants (465 males, 565 females).
View Article and Find Full Text PDFJ Clin Epidemiol
October 2024
CIC Clinical epidemiology, CHRU Nancy, Inserm, Université de Lorraine, Nancy, France; Inserm, CHRU Nancy, Université de Lorraine, Clinical Epidemiology, Nancy, France.
Objectives: The recent Flare-OA questionnaire measuring flare in knee and hip osteoarthritis (OA) (19 items in 5 domains, numerical rating scale) showed good psychometric properties along with classical test theory. This study aimed to determine its scaling properties by Rasch analysis and to present evidence for a refined scalable version.
Study Design And Setting: The participants were 398 subjects (mean age 64 years [standard deviation = 8.
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