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A Solution of the Conditional Estimation Problem for Long Tests in the Rasch Model For Dichotomous Items.
Peer reviewed Peer reviewed
Gustafsson, Jan-Eric – Educational and Psychological Measurement, 1980
The statistically correct conditional maximum likelihood (CML) estimation method has not been used because of numerical problems. A solution is presented which allows a rapid computation of the CML esitmates also for long tests. CML has decisive advantages in the construction of statistical tests of goodness of fit. (Author/CP)
Descriptors: Goodness of Fit, Item Analysis, Latent Trait Theory, Mathematical Formulas