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Analysis of data fr...
Analysis of data from the International Outcome Inventory for Hearing Aids (IOI-HA) using Bayesian Item Response Theory
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- Leijon, Arne (författare)
- KTH,Skolan för datavetenskap och kommunikation (CSC)
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Dillon, H. (författare)
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Hickson, L. (författare)
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Kinkel, M. (författare)
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Kramer, S. E. (författare)
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- Nordqvist, Peter (författare)
- KTH,Tal, musik och hörsel, TMH
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(creator_code:org_t)
- 2020-09-11
- 2020
- Engelska.
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Ingår i: International Journal of Audiology. - : Taylor & Francis. - 1499-2027 .- 1708-8186.
- Relaterad länk:
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https://www.tandfonl...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Objective: IOI-HA response data are conventionally analysed assuming that the ordinal responses have interval-scale properties. This study critically considers this assumption and compares the conventional approach with a method using Item Response Theory (IRT). Design: A Bayesian IRT analysis model was implemented and applied to several IOI-HA data sets. Study sample: Anonymised IOI-HA responses from 13273 adult users of one or two hearing aids in 11 data sets using the Australian English, Dutch, German and Swedish versions of the IOI-HA. Results: The raw ordinal responses to IOI-HA items do not represent values on interval scales. Using the conventional rating sum as an overall score introduces a scale error corresponding to about 10 − 15% of the true standard deviation in the population. Some interesting and statistically credible differences were demonstrated among the included data sets. Conclusions: It is questionable to apply conventional statistical measures like mean, variance, t-tests, etc., on the raw IOI-HA ratings. It is recommended to apply only nonparametric statistical test methods for comparisons of IOI-HA results between groups. The scale error can sometimes cause incorrect conclusions when individual results are compared. The IRT approach is recommended for analysis of individual results.
Ämnesord
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Oto-rhino-laryngologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Otorhinolaryngology (hsv//eng)
Nyckelord
- behavioural measures
- Hearing aids
- IOI-HA
- Item Response Theory
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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