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Examining the inseparability of content knowledge from LSP reading ability: an approach combining bifactor-multidimensional item response theory and structural equation modeling
Cai,Yuyang1; Kunnan,Antony John2
2018-04-03
Source PublicationLanguage Assessment Quarterly
ISSN15434311 15434303
Volume15Issue:2Pages:109-129
AbstractThis study examined the separability of domain-general and domain-specific content knowledge from Language for Specific Purposes (LSP) reading ability. A pool of 1,491 nursing students in China participated by responding to a nursing English test and a nursing knowledge test. Primary data analysis involved four steps: (a) conducting a bifactor-multidimensional item response theory model (bifactor-MIRT) analysis to establish measurement validity for the assumed domain-general factor and domain-specific factors underlying each test and to compute bifactor-MIRT direct scores; (b) transforming the bifactor-MIRT scores into composite scores; (c) conducting a confirmatory factor analysis with the composite scores to reconstruct the orginal bifactor-MIRT models, and (d) conducting a structural equation modeling analysis to explore the relationship between nursing knowledge factors (domain-general and domain-specific) and the nursing English reading factors (domain-general and domain-specific). The results showed that the domain-specific passage factors were significantly correlated with their corresponding domain-specific nursing knowledge factors and that domain-general nursing knowledge significantly predicted the variance of the domain-general reading factor. Overall, we concluded that content knowledge is inseparable from LSP reading ability. The implications for understanding LSP ability and for LSP reading test scoring are discussed.
DOI10.1080/15434303.2018.1451532
URLView the original
Language英语
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Document TypeJournal article
CollectionUniversity of Macau
Corresponding AuthorCai,Yuyang
Affiliation1.Department of Curriculum and Instruction,The Education University of Hong Kong,,New Territories,Hong Kong
2.Department of English,University of Macau,,Taipa,Macao
Recommended Citation
GB/T 7714
Cai,Yuyang,Kunnan,Antony John. Examining the inseparability of content knowledge from LSP reading ability: an approach combining bifactor-multidimensional item response theory and structural equation modeling[J]. Language Assessment Quarterly,2018,15(2):109-129.
APA Cai,Yuyang,&Kunnan,Antony John.(2018).Examining the inseparability of content knowledge from LSP reading ability: an approach combining bifactor-multidimensional item response theory and structural equation modeling.Language Assessment Quarterly,15(2),109-129.
MLA Cai,Yuyang,et al."Examining the inseparability of content knowledge from LSP reading ability: an approach combining bifactor-multidimensional item response theory and structural equation modeling".Language Assessment Quarterly 15.2(2018):109-129.
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