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Direct linkRamon Barrada, Juan; Veldkamp, Bernard P.; Olea, Julio – Applied Psychological Measurement, 2009
Computerized adaptive testing is subject to security problems, as the item bank content remains operative over long periods and administration time is flexible for examinees. Spreading the content of a part of the item bank could lead to an overestimation of the examinees' trait level. The most common way of reducing this risk is to impose a…
Descriptors: Item Banks, Adaptive Testing, Item Analysis, Psychometrics
Liu, Leping; Maddux, Cleborne D. – Computers in the Schools, 2008
This article presents a study of Web 2.0 articles intended to (a) analyze the content of what is written and (b) develop a statistical model to predict whether authors' write about the need for new instructional design strategies and models. Eighty-eight technology articles were subjected to lexical analysis and a logistic regression model was…
Descriptors: Concept Mapping, Content Analysis, Journal Articles, Predictor Variables
Buhl, David A.; Morissette, Michael A.; Wolff, Jeffry – Mathematics Teacher, 2006
The students of a Mathematical Modeling and Problem Solving class investigate and explore the mathematics involved in fitting a box spring mattress up a stairwell by solving various optimization problems and by using The Geometer's Sketchpad. The results show that a very small fraction of the class was actually able to solve the problem without…
Descriptors: Problem Solving, Mathematics Instruction, Mathematics Activities, Learning Strategies
Download full textLosee, Robert M., Jr. – 1993
A model of mono- or multimedia document structure is proposed consistent with the notion that there should be few changes in subject between one document passage and adjacent passages, where a passage may be a phrase, sentence, or paragraph. An algorithm for ordering passages in a composition is provided which is optimal given only a concern for…
Descriptors: Algorithms, Communication (Thought Transfer), Computer Assisted Instruction, Discourse Analysis
Botzer, Galit; Yerushalmy, Michal – International Journal for Technology in Mathematics Education, 2006
This paper focuses on the cognitive processes that occur while students are exploring motion graphs. In a classroom experiment, we examine how high-school students (aged 17), with backgrounds in calculus and physics, interpret the graphs they create through drawing the path of the movement of their hand with a computer mouse. Based on recent, and…
Descriptors: Graphs, Physics, Motion, Cognitive Processes
Ohlsson, Stellan – 1992
The role of prior knowledge in skill acquisition is to enable the learner to detect and to correct errors. Computational mechanisms that carry out these two functions are implemented in a simulation model which represents prior knowledge in "constraints". The model learns symbolic skills in mathematics and science by noticing and…
Descriptors: Cognitive Processes, Computer Assisted Instruction, Computer Simulation, Feedback
