Studies in measurement of the relations among sovereign states Frank L. Klingberg OriginalPaper Pages: 335 - 352
A simple scoring weight for test items and its reliability J. P. Guilford OriginalPaper Pages: 367 - 374
Some comparisons of the multiple-factor and the bi-factor methods of analysis Frances Swineford OriginalPaper Pages: 375 - 382
The analysis of variance and covariance techniques in relation to the conventional formulas for the standard error of a difference Max D. Englehart Erratum Pages: 407 - 407
