A handful of the most commonly used self-report tests, including the Client Oriented Scale of Improvement (COSI), the Abbreviated Profile of Hearing Aid Benefit (APHAB), the Glasgow Hearing Aid Benefit Profile (GHABP), and the Hearing Handicap Inventory for the Elderly (HHIE), have been normed and validated over time. This provides greater assurance of the usefulness of these measures when they are deployed as intended, says Carole E. Johnson, PhD, professor in the Department of Communication Disorders at Auburn University. Johnson is co-author of Handbook of Outcomes Measurement in Audiology, which is used in many AuD programs. 1 Robyn Cox, PhD, professor of audiology and director of the Hearing Aid Research Laboratory at the University of Memphis, is a leading authority on outcomes measurement and has developed some of the most widely used self-reporting tools. She states that professionals who conduct formal outcomes measurements find that they improve the overall effectiveness of their services. However, despite that and even though many respected tools are availablemost of them free and downloadable from web sitesa great many hearing care professionals have not incorporated them into their daily practice. For example, Carole Johnson and Jeffrey L. Danhauer, PhD, reporting in 2001 on a survey of randomly selected members of the American (visit) Academy of Audiology (AAA), said that 60% of the 109 respondents reported conducting some sort of outcomes measures.
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