Björn Andersson: Observed-score equating using latent variable models with categorical data
Tid: On 2015-03-04 kl 13.00 - 14.00
Plats: Room B705, Department of Statistics, Stockholm university
Medverkande: Björn Andersson, Uppsala University
Equating ensures that test scores from separate administrations of a particular standardized test are comparable. This presentation introduces a general framework for observed-score equating using latent variable models with categorical data. It is shown how equating can be conducted using dichotomous and polytomous item response theory models and also using factor analysis for categorical data.