The task was to survey an area of a planet's surface to identify the presence of various geological features such as a trench, ridge, or basin. Students who received prior pictorial representations of features performed more accurately than students who did not, but there was no significant effect for including verbal statements about strategies…

Presents a classroom simulation that employs active learning to introduce students to congressional politics using the national issues of the Gilded Age. Explains that the students are divided into groups in order to simulate the U.S. Senate and then discuss, amend, and vote on legislation. Provides four detailed simulation options. (CMK)

Describes the planning, implementation, and results of an experiment at Brooklyn Law School (New York) to teach legal writing skills by a simulation activity which integrates client interviewing skills with the process of composing the client-advice letter. Experience with this approach over three years is recounted. (DB)

This study evaluated 99 baccalaureate social work students' reactions to simulation kits that replicated visual impairments common with the aging process. Through qualitative research methods, students' preconceived notions and reported incidents of ageism were assessed in light of their reactions to increased understanding of visual changes. The…

This article considers the extent and nature of student participation in a trade bargaining simulation from a community of practice perspective. This third-year economics module included a blend of online communication (through email, online chats and online discussions) and face-to-face meetings, both in smaller bargaining groups and in whole…

In this article, a maximum likelihood approach is developed to analyze structural equation models with dichotomous variables that are common in behavioral, psychological and social research. To assess nonlinear causal effects among the latent variables, the structural equation in the model is defined by a nonlinear function. The basic idea of the…

"Who would ever use this stuff?" Middle school mathematics teachers often respond to such questions by emphasizing connections and the need for students "to recognize and apply mathematics in contexts outside mathematics" (National Council of Teachers of Mathematics 2000, p. 64). This article describes how, within this framework, the bicentennials…

Two new methods have been proposed to determine unexpected sum scores on sub-tests (testlets) both for paper-and-pencil tests and computer adaptive tests. A method based on a conservative bound using the hypergeometric distribution, denoted p, was compared with a method where the probability for each score combination was calculated using a…

A statistical test for detecting answer copying on multiple-choice tests based on Cohen's kappa is proposed. The test is free of any assumptions on the response processes of the examinees suspected of copying and having served as the source, except for the usual assumption that these processes are probabilistic. Because the asymptotic null and…

Comparing variability of test scores across alternate forms, test conditions, or subpopulations is a fundamental problem in psychometrics. A confidence interval for a ratio of standard deviations is proposed that performs as well as the classic method with normal distributions and performs dramatically better with nonnormal distributions. A simple…

The effect of time-related mean differences on estimates of association in cross-sectional studies has not been widely recognized in developmental and aging research. Cross-sectional studies of samples varying in age have found moderate to high levels of shared age-related variance among diverse age-related measures. These findings may be…

The mental model theory of naive causal understanding and reasoning (Goldvarg & Johnson-Laird, 2001, Cognitive Science, 25, 565-610) claims that people distinguish between causes and enabling conditions on the basis of sets of models that represent possible causal situations. In the tasks used to test this hypothesis, however, the proposed set of…

In this extended biology, ecology, and earth science activity, students construct hands-on models of natural wastewater treatment and wastewater treatment facilities to achieve an understanding of wastewater treatment process in nature and wastewater treatment facilities. During this simulation activity, students have opportunities to learn…

Reliable Digit Span (RDS) is an indicator used to assess the validity of cognitive test performance. Scores of 7 or lower suggest poor effort or negative response bias. The possibility that RDS scores are also affected by pain has not been addressed thus potentially threatening RDS specificity. The current study used cold pressor-induced pain to…

Genetics is a difficult topic as it involves abstract concepts, which are not directly observable. Studies on using simulations to support the learning of genetics have largely been confined to the use of quantitative simulations to replace experimentation. This study describes the use of a new type of simulation built using an iconic modelling…