1. Announcements

   Announcement Pages: 353 - 353

2. Quantitative analysis of qualitative data

   • Forrest W. Young

   OriginalPaper Pages: 357 - 388

3. Nonmetric maximum likelihood multidimensional scaling from directional rankings of similarities

   • Yoshio Takane
   • J. Douglas Carroll

   OriginalPaper Pages: 389 - 405

4. Simultaneous factor analysis of dichotomous variables in several groups

   • Bengt Muthén
   • Anders Christoffersson

   OriginalPaper Pages: 407 - 419

5. Multivariate stochastic processes compatible with “aspect” models of similarity and choice

   • A. A. J. Marley

   OriginalPaper Pages: 421 - 428

6. Matrix reorganization and dynamic programming: Applications to paired comparisons and unidimensional seriation

   • L. J. Hubert
   • R. G. Golledge

   OriginalPaper Pages: 429 - 441

7. Marginal maximum likelihood estimation of item parameters: Application of an EM algorithm

   • R. Darrell Bock
   • Murray Aitkin

   OriginalPaper Pages: 443 - 459

8. Optimal item difficulty for the three-parameter normal ogive response model

   • John H. Wolfe

   Notes And Comments Pages: 461 - 464

9. A note on ALSCAL: The estimation of the additive constant

   • N. D. Verhelst

   Notes And Comments Pages: 465 - 468

10. Range restrictions for product-moment correlation matrices

    • Ingram Olkin

    Notes And Comments Pages: 469 - 472

11. Reviews

    • David Rindskopf
    • David Thissen

    BookReview Pages: 473 - 476

12. Program of the 1981 annual meeting of the Psychometric Society

    Legacy Pages: 477 - 479

13. Minutes of the 1981 annual business meeting of the Psychometric Society

    • Cynthia H. Null

    Legacy Pages: 481 - 482