Psychometric Assessment of the Chinese Version of the Indian Vision Functioning Questionnaire Based on the Method of Successive Dichotomizations.

Translational Vision Science & Technology
Rongrong GaoJyoti Khadka

Abstract

The purpose of this study was to assess whether a Chinese translated version of the 33-item Indian Vision Function Questionnaire (IND-VFQ-33) forms a valid measurement scale and to evaluate its psychometric properties based on the method of successive dichotomizations (MSD). The English version of the IND-VFQ-33 was translated, back translated, and cross-culturally adapted for use in China. It was interviewer administered to patients with cataracts. MSD, a polytomous Rasch model that estimates ordered thresholds, was used to assess and optimize psychometric properties of the overall scale and three subscales separately. One hundred and seventy-nine patients provided complete responses. After the removal of 2 misfitting items, a revised 31-item overall scale demonstrated adequate precision (person reliability [PR] = 0.92) and no misfitting items. The general functioning subscale fit the MSD model well after removing two misfitting items. The psychosocial impact subscale and the visual symptoms subscale were not considered further due to poor measurement precision. After addressing psychometric deficiencies, a 31-item overall scale (IND-VFQ-31-CN) and a 19-item general functioning subscale (IND-VFQ-GF-19-CN) were developed. The o...Continue Reading

References

Apr 19, 2005·The British Journal of Ophthalmology·S K GuptaA E Fletcher
Jun 27, 2008·Indian Journal of Ophthalmology·Arvind Venkataraman, S R Rathinam
Sep 4, 2008·Graefe's Archive for Clinical and Experimental Ophthalmology = Albrecht Von Graefes Archiv Für Klinische Und Experimentelle Ophthalmologie·C LangeM Bach
Jun 13, 2009·Optometry and Vision Science : Official Publication of the American Academy of Optometry·Vijaya K GothwalKonrad Pesudovs
Aug 18, 2009·Investigative Ophthalmology & Visual Science·Vijaya K GothwalKonrad Pesudovs
Sep 11, 2009·Optometry and Vision Science : Official Publication of the American Academy of Optometry·Vijaya K GothwalKonrad Pesudovs
Dec 8, 2009·The British Journal of Ophthalmology·Konrad PesudovsVijaya K Gothwal
May 12, 2010·Journal of Cataract and Refractive Surgery·Konrad PesudovsEcosse L Lamoureux
Jun 24, 2010·Ophthalmology·Roberta McKean-CowdinUNKNOWN Los Angeles Latino Eye Study Group
Jul 9, 2010·Journal of Cataract and Refractive Surgery·Vijaya K GothwalKonrad Pesudovs
Jun 23, 2011·Investigative Ophthalmology & Visual Science·Robert P FingerEva Fenwick
Aug 4, 2011·Investigative Ophthalmology & Visual Science·Jyoti KhadkaChristoph Hirneiss
Feb 7, 2012·The British Journal of Ophthalmology·Vijaya K GothwalRebecca Sumalini
Jul 23, 2013·Optometry and Vision Science : Official Publication of the American Academy of Optometry·Jyoti KhadkaKonrad Pesudovs
Apr 29, 2014·Journal of Cataract and Refractive Surgery·Kaziwe MollazadeganKonrad Pesudovs
Jun 12, 2014·Investigative Ophthalmology & Visual Science·Jyoti KhadkaKonrad Pesudovs
Feb 17, 2015·Indian Journal of Ophthalmology·Rohit ShettyVishal Arora
Feb 27, 2016·The British Journal of Ophthalmology·Praveen VashistKalaivani Mani
Aug 25, 2016·Diabetes Care·Janet L LeasherUNKNOWN Vision Loss Expert Group of the Global Burden of Disease Study
Nov 8, 2016·Current Opinion in Ophthalmology·Cameron M Lee, Natalie A Afshari
Jan 18, 2018·Medical Science Monitor : International Medical Journal of Experimental and Clinical Research·Xing ChenJianchun Yu
Sep 26, 2019·Ophthalmology. Glaucoma·Chelsea L ReighardJoshua R Ehrlich
Oct 6, 2019·Journal of Cataract and Refractive Surgery·Valerie SchmelterNikolaus Luft
Oct 11, 2019·Cornea·Himal KandelStephanie L Watson
Oct 28, 2019·Scientific Reports·Susanne G PondorferRobert P Finger

❮ Previous
Next ❯

Software Mentioned

SPSS Statistic
SPSS
R package msd

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.