1. The reliability coefficient

   • Truman L. Kelley

   OriginalPaper Pages: 75 - 83

2. Regression fallacies in the matched groups experiment

   • Robert L. Thorndike

   OriginalPaper Pages: 85 - 102

3. Unique types of achievement test exercises

   • Max D. Engelhart

   OriginalPaper Pages: 103 - 115

4. Contributions to the mathematical theory of human relations: V

   • N. Rashevsky

   OriginalPaper Pages: 117 - 134

5. An appraisal of the validity of the factor loadings employed in the construction of the primary social attitude scales

   • Leonard W. Ferguson
   • Warren R. Lawrence

   OriginalPaper Pages: 135 - 138

6. Response relay

   • J. E. P. Libby

   OriginalPaper Pages: 139 - 141

7. A note on the computation of biserialr in item validation

   • Philip H. DuBois

   OriginalPaper Pages: 143 - 146