The benefits of item response theory (IRT) will only accrue to a testing program to the extent that model assumptions are met. Obtaining accurate item parameter estimates is a critical first step. However, the sample sizes required for stable parameter estimation are often difficult to obtain in practice, particularly for the more complex models.…

The Mantel-Haenszel (MH) procedure has become one of the most popular procedures for detecting differential item functioning. Valid results with relatively small numbers of examinees represent one of the advantages typically attributed to this procedure. In this study, examinee item responses were simulated to contain differentially functioning…

A simulation game being used in the economics department at the University of North Dakota to introduce students to the world of banking is described. The rationale for this approach is that the economics curriculum tends to be more conceptual than practical in content, and provides limited internship opportunities. The simulation game approach…

The development and implementation of simulated research experiences for use in teaching research methods to undergraduate sociology majors are described. (Author/DE)

A simulation is offered as an example of how it can improve dialogue, encourage valuing, and stimulate student participation in real world experiences. (Author/KM)

This simulation focuses on one of the social and psychological difficulties inherent in the assimilation process, the language barrier. (Author/KM)

Contrary to common belief, reliability estimates of number-right multiple-choice tests are not inflated by speededness. Because examinees guess on questions when they run out of time, the responses to these questions show less consistency with the responses of other questions, and the reliability of the test will be decreased. The surprising…

It is common to assume during statistical analysis of a multiscale assessment that the assessment has simple structure or that it is composed of several unidimensional subtests. Under this assumption, both the unidimensional and multidimensional approaches can be used to estimate item parameters. This paper theoretically demonstrates that these…

This instructional unit is comprised of four lessons dealing with conducting a four part class in basic rock climbing. The class is suitable, with modifications, for small private parties, small groups such as the Boy Scouts, or larger, organized groups such as climbing clubs. Four instructional methods are used: instructional media,…

To assess the effect on discriminant analysis in terms of correct classification into two groups, the following parameters were systematically altered using Monte Carlo techniques: sample sizes; proportions of one group to the other; number of independent variables; and covariance matrices. The pairing of the off diagonals (or covariances) with…

The state of research on the use of audiotape recordings for teaching purposes is reviewed, and 10 strategies are discussed in detail: (1) verbal stimulation of activity; (2) nonverbal stimulation of activity; (3) stimulation of relaxation; (4) real time conservation of acoustic reality; (5) reportage (simulation and condensation of reality); (6)…