A nonmetric variety of linear factor analysis Joseph B. KruskalRoger N. Shepard OriginalPaper Pages: 123 - 157
Models for the analysis of alternative sources of growth in correlated stochastic variables Carl H. Frederiksen OriginalPaper Pages: 223 - 245
Estimation of latent ability and item parameters when there are omitted responses Frederic M. Lord OriginalPaper Pages: 247 - 264