A unidimensional model for responses to statements that have an unfolding structure was constructed from the cumulative Rasch model for ordered response categories. A joint maximum likelihood estimation procedure was investigated. Analyses of data from a small simulation and a real data set show that the model is readily applicable. (SLD)

A latent trait measurement model in which ordered response categories are both parameterized and scored with successive integers is investigated and applied to a summated rating or Likert questionnaire. This is a practical procedure for measuring attitudes. (Author/MH)

Applying the principles of latent trait analysis makes it possible to rank order profiles of students seeking college admission in terms of the adequacy of a single score. An illustration using 577 profiles shows that it is possible that only a subset of profiles may require qualitative analysis. (SLD)

A probabilistic item response theory (IRT) model is developed for pair-comparison design in which the unfolding principle governing the choice process uses a discriminant process analogous to Thurstone's Law of Comparative Judgment. A simulation study demonstrates the feasibility of estimation, and two examples illustrate the implications for…

This paper describes the use of the Rasch model to help implement computerized administration of the standard and advanced forms of Raven's Progressive Matrices (RPM), to compare relative item difficulties, and to convert scores between the standard and advanced forms. The sample consisted of 95 girls and 95 boys in Australia. (SLD)

In circumstances where judges are required to make ratings of performance, it is usually required to have two or more raters who are trained to agree on independent ratings of the same performance. It is suggested that such a requirement may produce the paradox of attenuation associated with item analysis, in which too high a correlation between…

The Rasch simple logistic model is used to examine the relative item parameter values of a personality inventory with respect to populations cross-classified by sex and country. While items conform to the model within each of the populations, half the items show significant discrepancies among the populations. (Author/RL)