1. An approach to mental test theory

   • Frederic M. Lord

   OriginalPaper Pages: 283 - 302

2. Theoretical models of choice and strategy behavior: Stable state behavior in the two-choice uncertain outcome situation

   • Sidney Siegel

   OriginalPaper Pages: 303 - 316

3. The concept of configuration of interpersonal relations in a group as a time-dependent stochastic process

   • Leo Katz
   • Charles H. Proctor

   OriginalPaper Pages: 317 - 327

4. Pattern variants on a square field

   • S. J. Prokhovnik

   OriginalPaper Pages: 329 - 341

5. A synthesis of two factor analyses of intermediate algebra

   • William E. Kline

   OriginalPaper Pages: 343 - 359

6. Redundancy in task assignments and group performance

   • Robert B. Zajonc
   • William H. Smoke

   OriginalPaper Pages: 361 - 369

7. A note on the use of mood's likelihood ratio test for item analyses involving 2 × 2 tables with small samples

   • Irving B. Weiner

   OriginalPaper Pages: 371 - 372

8. Publications received for review

   Announcement Pages: 373 - 374

9. Book reviews

   • Robert M. W. Travers
   • Philip H. DuBois

   BookReview Pages: 375 - 378

10. Minutes of the 1959 Annual business Meeting of the Psychometric Society

    • Philip H. DuBois

    Report Pages: 399 - 401

11. Erratum

    • Cureton Edward E.

    Erratum Pages: 404 - 404