Open AccessItem Response Theory Applied to Factors Affecting the Patient Journey towards Hearing Rehabilitation
Author(s) -
Michelene N. Chenault,
Martijn P. F. Berger,
Bernd Kremer,
Lucien J. C. Anteunis
Publication year - 2016
Publication title -
audiology research
Language(s) - English
Resource type - Journals
ISSN - 2039-4349
DOI - 10.4081/audiores.2016.159
Subject(s) - hearing aid , rehabilitation , audiology , reimbursement , differential item functioning , stigma (botany) , medicine , scale (ratio) , psychology , item response theory , clinical psychology , physical therapy , psychiatry , psychometrics , health care , economic growth , economics , physics , quantum mechanics
To develop a tool for use in hearing screening and to evaluate the patient journey towards hearing rehabilitation, responses to the hearing aid rehabilitation questionnaire scales aid stigma, pressure, and aid unwanted addressing respectively hearing aid stigma, experienced pressure from others; perceived hearing aid benefit were evaluated with item response theory. The sample was comprised of 212 persons aged 55 years or more; 63 were hearing aid users, 64 with and 85 persons without hearing impairment according to guidelines for hearing aid reimbursement in the Netherlands. Bias was investigated relative to hearing aid use and hearing impairment within the differential test functioning framework. Items compromising model fit or demonstrating differential item functioning were dropped. The aid stigma scale was reduced from 6 to 4, the pressure scale from 7 to 4, and the aid unwanted scale from 5 to 4 items. This procedure resulted in bias-free scales ready for screening purposes and application to further understand the help-seeking process of the hearing impaired
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