Search results for author:"Rasil_Warnakulasooriya"
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World Conference on Educational Media and Technology 2005 (Jun 27, 2005) pp. 2976–2983
We demonstrate learning and problem-solving transfer between related physics problems using the Socratic web-based tutor, MasteringPhysics. Two equally skilled groups of students taking introductory mechanics solve related physics problem pairs in...
World Conference on Educational Media and Technology 2005 (Jun 27, 2005) pp. 2523–2529
We discuss new measures in assessing the skill level of students based on their interactions with the Socratic homework tutor, MasteringPhysics. We show that the measurement of the difficulty of problems for a given student as determined by the time ...
Journal of the Experimental Analysis of Behavior Vol. 88, No. 1 (July 2007) pp. 103–113
We studied students performing a complex learning task, that of solving multipart physics problems with interactive tutoring on the web. We extracted the rate of completion and fraction completed as a function of time on task by retrospectively...
Physical Review Special Topics - Physics Education Research Vol. 4, No. 1 (2008) pp. 10102–1
We investigate short-term learning from hints and feedback in a Web-based physics tutoring system. Both the skill of students and the difficulty and discrimination of items were determined by applying item response theory (IRT) to the first answers...