ERIC Number: ED599228
Record Type: Non-Journal
Publication Date: 2019
Pages: 55
Abstractor: As Provided
ISBN: N/A
ISSN: EISSN-
EISSN: N/A
Available Date: N/A
On Longitudinal Item Response Theory Models: A Didactic
Wang, Chun; Nydick, Steven W.
Grantee Submission
Recent work on measuring growth with categorical outcome variables has combined the item response theory (IRT) measurement model with the latent growth curve (LGC) model (e.g., McArdle, 1988) and extended the assessment of growth to multidimensional IRT models (e.g., Hsieh, von Eye, & Maier, 2010; Huang, 2013) and higher-order IRT models (e.g., Huang, 2015). However, there is a lack of synthetic studies that clearly evaluate the strength and limitations of different multilevel IRT models for measuring growth. This study aims to introduce the various longitudinal IRT models, including the longitudinal unidimensional IRT model (L-UIRT), longitudinal multidimensional IRT model (L-MIRT), and longitudinal higher-order IRT model (L-HO-IRT), which cover a broad range of applications in education and social science. Following a comparison of the parameterizations, identification constraints, strengths, and weaknesses of the different models, a real data example is provided to illustrate the application of different longitudinal IRT models to model students' growth trajectories on multiple latent abilities. [The paper will be published in "Journal of Educational and Behavioral Statistics."]
Publication Type: Reports - Research
Education Level: N/A
Audience: N/A
Language: English
Sponsor: Institute of Education Sciences (ED)
Authoring Institution: N/A
Identifiers - Assessments and Surveys: National Education Longitudinal Study of 1988 (NCES)
IES Funded: Yes
Grant or Contract Numbers: R305D170042
Author Affiliations: N/A