Maximum likelihood and Bayesian estimates of proficiency, typically used in adaptive testing, use item weights that depend on test taker proficiency to estimate test taker proficiency. In this study, several methods were explored through computer simulation using fixed item weights, which depend mainly on the items difficulty. The simpler scores…

Everyone is familiar with the concept that the cube and octahedron, dodecahedron and icosahedron are dual pairs, with the tetrahedron being self-dual. On the face of it, the concept seems straightforward; however, in all but the most symmetrical cases it is far from clear. By using the computer and three-dimensional graphics programs, it is…

Lord's bias function and the weighted likelihood estimation method are effective in reducing the bias of the maximum likelihood estimate of an examinee's ability under the assumption that the true item parameters are known. This paper presents simulation studies to determine the effectiveness of these two methods in reducing the bias when the item…

Presents algorithms for the simulation and motion display of the three basic kinematic devices: (1) four bar linkages; (2) the slider crank; and (3) the inverted slider crank mechanisms. The algorithms were implemented on a Commodore-VIC 20 microcomputer system with 6500 bytes of available memory. (Author/JN)

It is a widely held belief that anchor tests should be miniature versions (i.e., minitests), with respect to content and statistical characteristics of the tests being equated. This paper examines the foundations for this belief. It examines the requirement of statistical representativeness of anchor tests that are content representative. The…

Digital information can be lost for a variety of reasons, including magnetic decay, format and device obsolescence, human or system error, among many others. A solution is to build an archival repository, a system capable of storing and preserving digital objects as technologies and organizations evolve. Designing an archival repository is a…

Comparisons were made of attitudes and behavior between single- and multiperson teams in business simulation games. Multiperson games gave rise to higher initial goals for business success, but lower individual feelings of responsibility for outcome. (CMV)

This report examines issues in the scale-up of assessment software from the Center for Research on Evaluation, Standards, and Student Testing (CRESST). "Scale-up" is used in a metaphorical sense, meaning adding new assessment tools to CRESST's assessment software. During the past several years, CRESST has been developing and evaluating a…

This article discusses the effectiveness of a theoretical-based integrated learning environment (ILE) for training non-traditional learners to perform the skills required to be successful in entry-level jobs. The ILE places instruction in a real-world, workplace context with realistic settings, characters, and storylines. The multimedia interface…

Background: Terms such as 'clinical intuition' have often been applied to the practice of speech and language therapy. Various authors have aimed to make the process of therapy practice more explicit, and it is argued that recently developed descriptive/analytic frameworks have the potential to engender the critical mindset necessary for student…

With the advent of No Child Left Behind (NCLB), the context for NAEP participation is changing. Whereas in the past participation in NAEP has always been voluntary, participation is now mandatory for some grade and subjects among schools receiving Title I funds. While this will certainly raise school-level participation rates in the mandated…

The purpose of this simulation was to assess the improvements in estimates of standard errors that could be expected if students participating in NAEP were pre-assigned to test booklets that were adapted to their level of performance based on their state assessment scores. Students in extreme quartiles would receive one regular NAEP block and…

In order to evaluate our methods and approaches of estimating the operating characteristics of discrete item responses, it is necessary to try other comparable methods on similar sets of data. LOGIST 5 was taken up for this reason, and was tried upon the hypothetical test items, which follow the normal ogive model and were used frequently in…

Explores different measures of performance in a complex management game and suggests how these measures can be used to motivate learning and evaluate performance. (Author)

Focus: HOPE provides valuable, practical occupational training in machinist or information technology (IT) occupations to young people who face barriers to the development of viable careers through postsecondary education and training because of low-income, basic skills deficiencies, incarceration, or parenting responsibilities. This report…