ERIC Number: EJ590627
Record Type: Journal
Publication Date: 1999
Reference Count: N/A
Approximations of Normal IRT Models for Change.
Tan, E. S.; Ambergen, A. W.; Does, R. J. M. M.; Imbos, Tj.
Journal of Educational and Behavioral Statistics, v24 n2 p208-23 Sum 1999
Studied the one-parameter Item Response Theory model with normal item-characteristic curves in a longitudinal context. Results of a simulation suggest that the proposed procedure is rather robust against departures from normality. However, the estimation of the correlations between regression parameters can be seriously biased. (SLD)
Publication Type: Journal Articles; Reports - Evaluative
Education Level: N/A
Authoring Institution: N/A