We illustrate a class of multidimensional item response theory models in which the items are allowed to have different discriminating power and the latent traits are represented through a vector having a discrete distribution. We also show how the hypothesis of unidimensionality may be tested against a specific bidimensional alternative by using a…

In a randomized experiment (n = 515), a computerized and a computerized adaptive test (CAT) are compared. The item pool consists of 24 polytomous motivation items. Although items are carefully selected, calibration data show that Samejima's graded response model did not fit the data optimally. A simulation study is done to assess possible…

The 10th International Conference on Educational Data Mining (EDM 2017) is held under the auspices of the International Educational Data Mining Society at the Optics Velley Kingdom Plaza Hotel, Wuhan, Hubei Province, in China. This years conference features two invited talks by: Dr. Jie Tang, Associate Professor with the Department of Computer…

Understanding of immunological techniques such as the Enzyme Linked Immuno Sorbent Assay (ELISA) is an important part of instructional units in human health, developmental biology, microbiology, and biotechnology. This paper describes a simple ELISA exercise for undergraduate biology that effectively simulates the technique using a paper model.…

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)

The role of computer science in relation to education is discussed from two points of view: (1) the use of computer models for studying the learning process, and (2) the use of the computer as a teaching device. (SD)

A rationale is developed for use of computerized Monte Carlo simulation models in the economics and finance curricula. (Author)

Describes the application of simulation as a teaching tool which provides a means of understanding living organisms by representing only the essential aspects of selected biological processes which might not be readily visualized. (BR)

The behavior of two real-time computer simulation models of melody recognition was compared with the performance of human subjects in this study. One of the models, INT1, recognized melodies by comparing specific intervals with stored intervals. The other model, CONT1, performed by comparing the contour of the stimulus melody with an array of…

The booklet describes the approach to career education for hearing impaired students developed by the Kendall Demonstration Elementary School (KDES) in the District of Columbia. The KDES model is described in terms of project direction and the seven model components: planning, staff development, program development, curriculum development,…

Described in the context of a computer simulation are highlights of a program of research focusing on the storage of mathematics problem solving information in young children's memory and the development of such knowledge structures in older children. Specifically discussed are the problem size effect, the network nature of the memory…

A study is reported in which 7 children (2 girls and 5 boys, 11 to 12 years of age) with a year of LOGO Programming experience were asked to think aloud about how a LOGO procedure would work, and then to predict by hand-simulation of the programs, what the graphics turtle "pen" would draw when the program was executed. While all children…

The reserve book activities of a typical college library were analyzed by means of a computer simulation. (Author)

A pilot project tested the feasibility of developing computer simulation models as aids to the operation and design of library systems. (Author/PF)

A project studied the problem of control of skilled motor movements by concentrating on typing. The fundamental phenomena of typing, which fall into three categories, were reviewed: timing of key strokes, pattern of errors, and general organization of typing. A model for the simulation of these phenomena was developed, based on an…