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Psychometric properties of the revised Diabetes Knowledge Test using Rasch analysis

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dc.contributor.authorLee, EH-
dc.contributor.authorLee, YW-
dc.contributor.authorKang, HJ-
dc.date.accessioned2023-02-27T07:12:47Z-
dc.date.available2023-02-27T07:12:47Z-
dc.date.issued2022-
dc.identifier.issn0738-3991-
dc.identifier.urihttp://repository.ajou.ac.kr/handle/201003/24865-
dc.description.abstractOBJECTIVE: The revised Diabetes Knowledge Test (DKT2) is the instrument that is the most widely used for measuring diabetes knowledge; nevertheless, its structural validity has never been evaluated. This study aimed to determine the psychometric properties of the DKT2. METHODS: This study performed a secondary data analysis of people with diabetes recruited at university hospitals. Rasch analysis was used. RESULTS: One item in the 14-item DKT2 measuring general diabetes knowledge exhibited a poor-fit, and so it was eliminated. The person-item map showed that items of greater difficulty need to be added to the instrument. The principal-components analysis of residuals revealed a unidimensional structure. The person reliability was 0.50, with a person separation index of 1.01. Measurement invariance was not satisfied for items 11 and 2 according to gender and age. CONCLUSIONS: The unidimensional structure of the 13-item DKT2 demonstrated poor person reliability and a low person separation index. Females and elderly persons found it more difficult to respond to items 11 and 2, respectively. PRACTICE IMPLICATIONS: Careful consideration is necessary when using the 13-item DKT2 in practice and research. It is recommended for future studies to add items of greater difficulty to the instrument.-
dc.language.isoen-
dc.subject.MESHAged-
dc.subject.MESHDiabetes Mellitus-
dc.subject.MESHFemale-
dc.subject.MESHHumans-
dc.subject.MESHKnowledge-
dc.subject.MESHPsychometrics-
dc.subject.MESHReproducibility of Results-
dc.subject.MESHSurveys and Questionnaires-
dc.titlePsychometric properties of the revised Diabetes Knowledge Test using Rasch analysis-
dc.typeArticle-
dc.identifier.pmid34284912-
dc.subject.keywordDiabetes-
dc.subject.keywordKnowledge-
dc.subject.keywordPsychometrics-
dc.subject.keywordRasch analysis-
dc.contributor.affiliatedAuthorLee, EH-
dc.type.localJournal Papers-
dc.identifier.doi10.1016/j.pec.2021.07.013-
dc.citation.titlePatient education and counseling-
dc.citation.volume105-
dc.citation.number4-
dc.citation.date2022-
dc.citation.startPage851-
dc.citation.endPage857-
dc.identifier.bibliographicCitationPatient education and counseling, 105(4). : 851-857, 2022-
dc.embargo.liftdate9999-12-31-
dc.embargo.terms9999-12-31-
dc.identifier.eissn1873-5134-
dc.relation.journalidJ007383991-
Appears in Collections:
Journal Papers > Graduate School of Public Health > Public Health
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