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Automatic assessment and error identification of multi-step answers for matrix questions

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dc.contributor.author Thirunavukkarasu, N
dc.contributor.author Selvarasa, A
dc.contributor.author Rajendran, N
dc.contributor.author Yogalingam, C
dc.contributor.author Ranathunga, S
dc.contributor.author Dias, G
dc.date.accessioned 2018-08-20T21:01:06Z
dc.date.available 2018-08-20T21:01:06Z
dc.date.issued 2017
dc.identifier.uri http://dl.lib.mrt.ac.lk/handle/123/13409
dc.description.abstract This paper presents an automatic assessment and error identification system for student answers with matrix expressions, and which may have multiple steps. Teacher’s intervention is needed only during the question set-up stage, to provide the marking rubric. The system currently supports four types of matrix questions: multiplying a matrix by a constant number, matrix addition and subtraction, finding unknown elements within a matrix, and finding the unknown matrix from an equation. A CAS (Computer Algebra System) is used to evaluate each step of the student’s answer. The system is capable of giving full/partial marks according to a marking rubric. Errors commonly made by students were identified and categorized by analyzing sample student answers. Using this categorization, the system is capable of identifying the exact error(s) made by a student. en_US
dc.language.iso en en_US
dc.subject Automatic Assessment en_US
dc.subject Computer Algebra System
dc.subject e-learning
dc.subject feedback
dc.subject Matrix
dc.subject Multi Step
dc.subject Partial Credit
dc.title Automatic assessment and error identification of multi-step answers for matrix questions en_US
dc.type Conference-Extended-Abstract
dc.identifier.faculty Engineering en_US
dc.identifier.department Department of Computer Science and Engineering en_US
dc.identifier.year 2017 en_US
dc.identifier.conference Moratuwa Engineering Research Conference - MERCon 2017 en_US
dc.identifier.place Moratuwa, Sri Lanka en_US
dc.identifier.email nilathiru.12@cse.mrt.ac.lk en_US
dc.identifier.email anutharsha.12@cse.mrt.ac.lk en_US
dc.identifier.email niveathika.12@cse.mrt.ac.lk en_US
dc.identifier.email chinthoorie.12@cse.mrt.ac.lk en_US
dc.identifier.email surangika@cse.mrt.ac.lk en_US
dc.identifier.email gihan@cse.mrt.ac.lk en_US


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