1. Spearman as I knew him

   • Karl J. Holzinger

   OriginalPaper Pages: 231 - 235

2. The prediction of choice

   • L. L. Thurstone

   OriginalPaper Pages: 237 - 253

3. A basis for analyzing test-retest reliability

   • Louis Guttman

   OriginalPaper Pages: 255 - 282

4. A simple orthogonal multiple factor approximation procedure

   • Hilding B. Carlson

   OriginalPaper Pages: 283 - 301