ERIC Number: EJ723419
Record Type: Journal
Publication Date: 2006
Reference Count: 41
Application of Multidimensional Item Response Theory Models to Longitudinal Data
te Marvelde, Janneke M.; Glas, Cees A. W.; Van Landeghem, Georges; Van Damme, Jan
Educational and Psychological Measurement, v66 n1 p5-34 2006
The application of multidimensional item response theory (IRT) models to longitudinal educational surveys where students are repeatedly measured is discussed and exemplified. A marginal maximum likelihood (MML) method to estimate the parameters of a multidimensional generalized partial credit model for repeated measures is presented. It is shown that model fit can be evaluated using Lagrange multiplier tests. Two tests are presented: the first aims at evaluation of the fit of the item response functions and the second at the constancy of the item location parameters over time points. The outcome of the latter test is compared with an analysis using scatter plots and linear regression. An analysis of data from a school effectiveness study in Flanders (Belgium) is presented as an example of the application of these methods. In the example, it is evaluated whether the concepts "academic self-concept," "well-being at school," and "attentiveness in the classroom" were constant during the secondary school period.
Descriptors: Foreign Countries, Regression (Statistics), School Effectiveness, Item Response Theory, Longitudinal Studies, School Surveys, Maximum Likelihood Statistics, Data Analysis, Secondary School Students
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Publication Type: Journal Articles; Reports - Descriptive
Education Level: Secondary Education
Authoring Institution: N/A
Identifiers - Location: Belgium