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Use of item respons...
Use of item response theory to develop a shortened version of the EORTC QLQ-C30 emotional functioning scale
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Bjorner, JB (författare)
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Petersen, MA (författare)
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Groenvold, M (författare)
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visa fler...
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Aaronson, N (författare)
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- Ahlner-Elmqvist, Marianne (författare)
- Lund University,Lunds universitet,Laryngoesofagologi, allergi och livskvalitet,Forskargrupper vid Lunds universitet,Laryngoesophagology, Allergy and Life Quality,Lund University Research Groups
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Arraras, JI (författare)
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Bredart, A (författare)
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Fayers, P (författare)
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Jordhoy, M (författare)
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Sprangers, M (författare)
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Watson, M (författare)
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Young, T (författare)
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visa färre...
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(creator_code:org_t)
- Springer Science and Business Media LLC, 2004
- 2004
- Engelska.
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Ingår i: Quality of Life Research. - : Springer Science and Business Media LLC. - 1573-2649 .- 0962-9343. ; 13:10, s. 1683-1697
- Relaterad länk:
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http://dx.doi.org/10...
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https://lup.lub.lu.s...
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https://doi.org/10.1...
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Abstract
Ämnesord
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- Background: As part of a larger study whose objective is to develop an abbreviated version of the EORTC QLQ-C30 suitable for research in palliative care, analyses were conducted to determine the feasibility of generating a shorter version of the 4-item emotional functioning (EF) scale that could be scored in the original metric. Methods: We used data from 24 European cancer studies conducted in 10 different languages (n = 8242). Item selection was based on analyses by item response theory (IRT). Based on the IRT results, a simple scoring algorithm was developed to predict the original 4-item EF sum scale score from a reduced number of items. Results: Both a 3-item and a 2-item version ( item 21 'Did you feel tense?' and item 24 'Did you feel depressed?') predicted the total score with excellent agreement and very little bias. In group comparisons, the 2-item scale led to the same conclusions as those based on the original 4-item scale with little or no loss of measurement efficiency. Conclusion: Although these results are promising, confirmatory studies are needed based on independent samples. If such additional studies yield comparable results, incorporation of the 2-item EF scale in an abbreviated version of the QLQ-C30 for use in palliative care research settings would be justified. The analyses reported here demonstrate the usefulness of the IRT-based methodology for shortening questionnaire scales.
Ämnesord
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Oto-rhino-laryngologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Otorhinolaryngology (hsv//eng)
Nyckelord
- cancer
- IRT
- palliative care
- prediction
- quality of life
- shortening
- of scales
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
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Bjorner, JB
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Petersen, MA
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Groenvold, M
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Aaronson, N
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Ahlner-Elmqvist, ...
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Arraras, JI
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visa fler...
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Bredart, A
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Fayers, P
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Jordhoy, M
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Sprangers, M
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Watson, M
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Young, T
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visa färre...
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