1. Who belongs in the family?

   • Robert L. Thorndike

   OriginalPaper Pages: 267 - 276

2. Image theory for the structure of quantitative variates

   • Louis Guttman

   OriginalPaper Pages: 277 - 296

3. A generalization of Thurstone's learning function

   • Harold Gulliksen

   OriginalPaper Pages: 297 - 307

4. Maximizing the discriminating power of a multiple-score test

   • Jane Loevinger
   • Goldine C. Gleser
   • Philip H. DuBois

   OriginalPaper Pages: 309 - 317

5. Some applications of attribute prediction theory to psychophysics

   • Norman C. Perry

   OriginalPaper Pages: 319 - 325

6. Notes on an approximation method for fitting parabolic equations to experimental data

   • A. Chapanis

   OriginalPaper Pages: 327 - 336