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Article: Rasch validation of the early childhood oral health impact scale

TitleRasch validation of the early childhood oral health impact scale
Authors
Keywordsoral health
quality of life
Issue Date2011
PublisherBlackwell Munksgaard. The Journal's web site is located at http://www.blackwellpublishing.com/journals/COM
Citation
Community Dentistry And Oral Epidemiology, 2011, v. 39 n. 5, p. 449-457 How to Cite?
AbstractObjectives: The early childhood oral health impact scale (ECOHIS), a proxy measure to assess the impact of oral health problems and on the quality of life of preschool children and their families, has been translated into Chinese and validated employing the classical test theory. However, some invariable problems are related to this theory. The objective of this study was to assess the metric properties of the ECOHIS by applying the item response theory. Methods: A random sample of 1296 Chinese preschool children in Hong Kong participated in the study and were subjected to an oral examination for their caries status. Their parents were asked to respond to the ECOHIS and an extra set of questions concerning their socio-demographic backgrounds. The collected data were analysed using Rasch model. Results: The obtained results support the interpretation of adequate total fit of persons and items, because the mean infit MNSQ (1.08) and outfit MNSQ (0.94) for persons, and the mean infit MNSQ (0.99) and outfit MNSQ (0.94) for items, are within the acceptable ranges (0.6-1.4). The difficulty spread of the items was between -0.81 and 1.96 logits, and the levels of respondents spanned from -5.56 to 6.72 logits on the person-item map. The spread of respondents was skewed and mistargeting, between the items and respondents, was confirmed. Combination of responses of 'often' and 'very often' was suggested because of their flat probability showing on the characteristic curves. Conclusions: Rasch model has been shown to be a feasible and practicable way of assessing the metric properties of the ECOHIS. The results allow the use of ECOHIS to be recommended for clinical research in oral health-related quality of life in young children with minor modifications. © 2011 John Wiley & Sons A/S.
Persistent Identifierhttp://hdl.handle.net/10722/142285
ISSN
2015 Impact Factor: 2.233
2015 SCImago Journal Rankings: 1.111
ISI Accession Number ID
Funding AgencyGrant Number
University Research Committee
University of Hong Kong
10208073.39144.08004.301.01
Funding Information:

The authors acknowledge the financial support provided by the University Research Committee, The University of Hong Kong, with the Seed Funding for Basic Research Grant Number: 10208073.39144.08004.301.01.

References

 

DC FieldValueLanguage
dc.contributor.authorWong, HMen_HK
dc.contributor.authorMcGrath, CPJen_HK
dc.contributor.authorKing, NMen_HK
dc.date.accessioned2011-10-28T02:42:06Z-
dc.date.available2011-10-28T02:42:06Z-
dc.date.issued2011en_HK
dc.identifier.citationCommunity Dentistry And Oral Epidemiology, 2011, v. 39 n. 5, p. 449-457en_HK
dc.identifier.issn0301-5661en_HK
dc.identifier.urihttp://hdl.handle.net/10722/142285-
dc.description.abstractObjectives: The early childhood oral health impact scale (ECOHIS), a proxy measure to assess the impact of oral health problems and on the quality of life of preschool children and their families, has been translated into Chinese and validated employing the classical test theory. However, some invariable problems are related to this theory. The objective of this study was to assess the metric properties of the ECOHIS by applying the item response theory. Methods: A random sample of 1296 Chinese preschool children in Hong Kong participated in the study and were subjected to an oral examination for their caries status. Their parents were asked to respond to the ECOHIS and an extra set of questions concerning their socio-demographic backgrounds. The collected data were analysed using Rasch model. Results: The obtained results support the interpretation of adequate total fit of persons and items, because the mean infit MNSQ (1.08) and outfit MNSQ (0.94) for persons, and the mean infit MNSQ (0.99) and outfit MNSQ (0.94) for items, are within the acceptable ranges (0.6-1.4). The difficulty spread of the items was between -0.81 and 1.96 logits, and the levels of respondents spanned from -5.56 to 6.72 logits on the person-item map. The spread of respondents was skewed and mistargeting, between the items and respondents, was confirmed. Combination of responses of 'often' and 'very often' was suggested because of their flat probability showing on the characteristic curves. Conclusions: Rasch model has been shown to be a feasible and practicable way of assessing the metric properties of the ECOHIS. The results allow the use of ECOHIS to be recommended for clinical research in oral health-related quality of life in young children with minor modifications. © 2011 John Wiley & Sons A/S.en_HK
dc.languageengen_US
dc.publisherBlackwell Munksgaard. The Journal's web site is located at http://www.blackwellpublishing.com/journals/COMen_HK
dc.relation.ispartofCommunity Dentistry and Oral Epidemiologyen_HK
dc.subjectoral healthen_HK
dc.subjectquality of lifeen_HK
dc.subject.meshChild, Preschoolen_HK
dc.subject.meshCross-Sectional Studiesen_HK
dc.subject.meshFemaleen_HK
dc.subject.meshHong Kongen_HK
dc.subject.meshHumansen_HK
dc.subject.meshMaleen_HK
dc.subject.meshOral Healthen_HK
dc.subject.meshPsychometricsen_HK
dc.subject.meshQuality of Lifeen_HK
dc.subject.meshQuestionnairesen_HK
dc.subject.meshTranslationsen_HK
dc.titleRasch validation of the early childhood oral health impact scaleen_HK
dc.typeArticleen_HK
dc.identifier.emailWong, HM: wonghmg@hkucc.hku.hken_HK
dc.identifier.emailMcGrath, CPJ: mcgrathc@hkucc.hku.hken_HK
dc.identifier.emailKing, NM: hhdbknm@hkucc.hku.hken_HK
dc.identifier.authorityWong, HM=rp00042en_HK
dc.identifier.authorityMcGrath, CPJ=rp00037en_HK
dc.identifier.authorityKing, NM=rp00006en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1111/j.1600-0528.2011.00614.xen_HK
dc.identifier.pmid21504439en_HK
dc.identifier.scopuseid_2-s2.0-80052908043en_HK
dc.identifier.hkuros196650en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-80052908043&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume39en_HK
dc.identifier.issue5en_HK
dc.identifier.spage449en_HK
dc.identifier.epage457en_HK
dc.identifier.eissn1600-0528-
dc.identifier.isiWOS:000294911200008-
dc.publisher.placeDenmarken_HK
dc.identifier.scopusauthoridWong, HM=12765604700en_HK
dc.identifier.scopusauthoridMcGrath, CPJ=7102335507en_HK
dc.identifier.scopusauthoridKing, NM=7201762850en_HK

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