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Huggins-Manley, Anne Corinne – Educational and Psychological Measurement, 2017
This study defines subpopulation item parameter drift (SIPD) as a change in item parameters over time that is dependent on subpopulations of examinees, and hypothesizes that the presence of SIPD in anchor items is associated with bias and/or lack of invariance in three psychometric outcomes. Results show that SIPD in anchor items is associated…
Descriptors: Psychometrics, Test Items, Item Response Theory, Hypothesis Testing
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Downey, Steve; Mohler, Jill; Morris, Joan; Sanchez, Rene – Australasian Journal of Educational Technology, 2012
Online learning critically relies upon good communication between engaged parties in order to convey ideas, meanings, and values. Emerging technologies in collaborative virtual environments are providing new affordances in establishing greater online presence and, in turn, greater abilities to communicate and learn. This study examines how…
Descriptors: Synchronous Communication, Computer Simulation, Simulated Environment, Virtual Classrooms
Makwana, Alpesh P. – ProQuest LLC, 2009
"Pre-Trip Inspection" of the truck and trailer is one of the components of the current Commercial Driver's License (CDL) test. This part of the CDL test checks the ability of the student to identify the important parts of the commercial vehicle and their potential defects. The "Virtual Check Ride System" (VCRS), a…
Descriptors: Feedback (Response), Experimental Groups, Motor Vehicles, Program Effectiveness
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Blasi, Laura; Alfonso, Berta – Simulation & Gaming, 2006
Building and evaluating artifacts specifically for K-12 education, technologists committed to design sciences are needed along with an approach to evaluation increasing the systemic transfer from research and development into school settings. The authors describe THE VIRTUAL LAB scanning electronic microscope simulation, including (a) its…
Descriptors: Research and Development, Formative Evaluation, Science Laboratories, Qualitative Research