Minimizing the number of observations: A generalization of the spearman-brown formula P. F. SandersT. J. J. M. TheunissenS. M. Baas OriginalPaper Pages: 587 - 598
An irt-based model for dichotomous longitudinal data Gerhard H. Fischer OriginalPaper Pages: 599 - 624
The role of collateral information about examinees in item parameter estimation Robert J. MislevyKathleen M. Sheehan OriginalPaper Pages: 661 - 679
Clusteringn objects intok groups under optimal scaling of variables Stef van BuurenWillem J. Heiser OriginalPaper Pages: 699 - 706
A simulated annealing methodology for clusterwise linear regression Wayne S. DeSarboRichard L. OliverArvind Rangaswamy OriginalPaper Pages: 707 - 736
Ordinal network representation: Representing proximities by graphs Karl Christoph Klauer OriginalPaper Pages: 737 - 750
The equivalence of two methods of parameter estimation for the rasch model Larry G. BlackwoodEdwin L. Bradley OriginalPaper Pages: 751 - 754
Principals versus osmod: A comment on saito and otsu Warren F. KuhfeldForrest W. Young Notes And Comments Pages: 755 - 756
Program of the Sixth European Meeting of the Psychometric Society University of Leuven, Belgium July 17–19, 1989 Report Pages: 761 - 763
