The assessment of dimensionality of data is important to item response theory (IRT) modelling and other multidimensional data analysis techniques. The fact that the parameters from the factor analysis formulation for dichotomous data can be expressed in terms of the parameters in the multidimensional IRT model suggests that the assessment of the…

An investigation of the effects of randomly missing data in two-predictor regression analyses is described. The differences in the effectiveness of five common treatments of missing data on estimates of R-squared values and each of the two standardized regression weights is also investigated. Bootstrap sample sizes of 50, 100, and 200 were drawn…

The extent to which properties of the ability scale and the form of the latent trait distribution influence the estimated item parameters of item response theory (IRT) was investigated using real and simulated data. Simulated data included 5,000 ability values randomly drawn from the standard normal distribution. Real data included the results for…

Suitable for secondary school students, the workbook provides flowcharting activities to help students understand the logical steps used in problem solving. Before applying the flowcharting procedures to mathematical problems, students are first introduced to familiar non-mathematical problems such as sharpening a pencil or eating peanuts. Section…

The effects of high versus low teacher control strategies on student objectives in a quasi-simulation University Career Game were studied. Results showed that high-control subjects made significantly more goal choices for educational efficiency, while low-control subjects made significantly more choices favoring personal and social growth.…

The ways in which role playing and simulation can assist students to clarify their values and to develop more adequate values is described. (DE)

Discussion of political science games and their use at the college level is intended to present a case for the feasibility and desirability to expand the role of simulation in Soviet studies. (Author/ND)

Explains the educational value of computer simulations in general and provides specific areas of computer application in teaching of chemistry, biology, and physics. Explains the application of instructional materials developed in the Chelsea Science Simulation Project. (GS)

This study examined several explicit and implicit assertions in Rosenhan's "On Being Sane in Insane Places" (AA 521 951), as well as methodological and logical shortcomings and interpretations contrary to those presented. (Author/RK)

Describes a simulation exercise for the teaching of taxonomy which involves studying drawings of members of an imaginary phylum. The use of this material can lead to an understanding of relationships, classification, taxonomic strategies, polymorphism, variation, and evolution. (Author/GS)

The purpose of the present investigation was (a) to examine the effect of two variables in developing assertive behavior using covert modeling and (b) to develop a technique to assess ongoing imagery during treatment. The results indicated that imagining multiple models or model reinforcement enhanced behavior change. (Author)

Describes an interactive simulated hypothetical instructional computer that significantly improves the student's understanding of how a computer works and how high-level language constraints are handled by essentially simple machines. (Author/IRT)

In developing an environmental education program, the author suggests a problem-solving process that encourages student involvement. He lists several learning activities that illustrate the four instructional guidelines that he advocates. These guidelines include student involvement and initiation in community change as well as the development of…