Gaming is discussed against a background of rationalist and historicist traditions of reality; trivial and nontrivial machine models of problem solving; and rigid-rule and free-form games. (JKP)

In a simulation study of ability and estimation of differential item functioning (DIF) in computerized adaptive tests, Rasch-based DIF statistics were highly correlated with generating DIF, but DIF statistics tended to be slightly smaller than in the three-parameter logistic model analyses. (SLD)

Describes a lesson that outlines a statistics/probability investigation into some aspects of past performance in snooker (a billiards game) using the random number generator on a graphing calculator. (MKR)

This update of the International Personnel Management Association's guidelines for organizational psychologists, human resource management specialists, and others addresses elements of assessment centers, policy statements, assessor training, informed participation, and participants' rights. (SK)

Used generalizability theory to assess the impact of using independent, randomly equivalent groups of experts to develop scoring algorithms for computer simulation tasks designed to measure physicians' patient management skills. Results with three groups of four medical school faculty members each suggest that the impact of the expert group may be…

Demonstrates that connectionist models described in "Rethinking Innateness" (Elman, et al., 1996) depend on innately assumed representations and do not offer a genuine alternative to nativism. Presents simulation results showing that the models are incapable of deriving genuine abstract representations that are not presupposed. Maintains…

Provides asymptotic standard errors of the estimates of equated scores from several types of item response theory (IRT) true score equatings. Equating designs considered cover those with internal or external common items and separate or simultaneous estimation. Uses marginal maximum likelihood estimation for the estimation of item parameters. (SLD)

Uses a laser pointer to demonstrate the analogy between optical and X-ray diffraction and a laser printer with 600 or 1200 dot resolution to create and modify arrays, print them on transparencies, and illuminate them with laser pointers. Includes 14 references. (Author/YDS)

Extends the modeling system presented in Part I. This model is applied to two widely diverse educational processes: "Student Actions" and "Do Homework Problem." Its computational syntax imposes completeness criteria on the modeling and its uniformity. (AIM)

Theoretical null distributions of several fit statistic have been derived for paper-and-pencil tests. Examined whether these distributions also hold for computerized adaptive tests through simulation. Rates for two statistics studied were found to be similar in most cases. (SLD)

Studied transfer with 60 adults in 4 different computer-based learning environment conditions (simulation of a business with multiple or uniform contexts) for which learners were given either no guidance, problem-solving guidance, or worked-out examples. Results suggest that to optimize learning, learning by problem solving should be combined with…

The hypothesis that applicant and rater sex, job sex-type, and job-relevant information would affect discrimination against applicants was tested in simulations. Both sexes received lower ratings when applying for opposite-sex-typed jobs. Both male and female raters rated male applicants higher. Differences between male and female ratings…

Assesses desktop-computer models that rotate in virtual three-dimensional space. Compares spatial learning with a computer carpal-bone model horizontally rotating at 10-degree views with the same model rotating at 90-degree views. (Author/CCM)

Evaluated the distribution of person fit within the computerized-adaptive testing (CAT) environment through simulation. Found that, within the CAT environment, these indexes tend not to follow a standard normal distribution. Person fit indexes had means and standard deviations that were quite different from the expected. (SLD)

Investigated three models that permit restricted examinee control over revising previous answers in the context of adaptive testing, using simulation. Two models permitting item revisions worked well in preserving test fairness and accuracy, and one model may preserve some cognitive processing styles developed by examinees for a linear testing…