1. Was euclid an unnecessarily sophisticated psychologist?

   • Phipps Arabie

   OriginalPaper Pages: 567 - 587

2. A generalized rasch model for manifest predictors

   • Aeilko H. Zwinderman

   OriginalPaper Pages: 589 - 600

3. A general solution for a class of weakly constrained linear regression problems

   • Jos M. F. ten Berge

   OriginalPaper Pages: 601 - 609

4. Kernel smoothing approaches to nonparametric item characteristic curve estimation

   • J. O. Ramsay

   OriginalPaper Pages: 611 - 630

5. Kruskal's polynomial for 2×2×2 arrays and a generalization to 2×n×n arrays

   • Jos M. F. ten Berge

   OriginalPaper Pages: 631 - 636

6. An extension of the rating scale model with an application to the measurement of change

   • G. H. Fischer
   • P. Parzer

   OriginalPaper Pages: 637 - 651

7. Equivalent models in covariance structure analysis

   • Thom C. W. Luijben

   OriginalPaper Pages: 653 - 665

8. Relationships among several methods of linearly constrained correspondence analysis

   • Yoshio Takane
   • Haruo Yanai
   • Shinichi Mayekawa

   OriginalPaper Pages: 667 - 684

9. Spatial and conjoint models based on pairwise comparisons of dissimilarities and combined effects: Complete and incomplete designs

   • Randall Bissett
   • Bruce Schneider

   OriginalPaper Pages: 685 - 698

10. Constrained latent class analysis: Simultaneous classification and scaling of discrete choice data

    • Ulf Böckenholt
    • Ingo Böckenholt

    OriginalPaper Pages: 699 - 716

11. Program for the joint meeting of the psychometric society and classification society of North America rutgers university, new Brunswick, 13 June – 16 June, 1991

    Report Pages: 717 - 724

12. Announcement

    • Mark D. Reckase

    Announcement Pages: 725 - 726