A Two-Phase Item Assigning in Adaptive Testing Using Norm Referencing and Bayesian Classification

  • R. Kavitha
  • A. Vijaya
  • D. Saraswathi
Part of the Advances in Intelligent and Soft Computing book series (AINSC, volume 166)


Due to the advancement in information technology and varied learner group, e-learning has become popular. Hence computer based assessment become a prevalent method of administering the tests. Randomization of test items here may produce unfair effect on test takers which is unproductive in the outcome of the test. There is a need to develop the Intelligent Tutoring System that assigns intelligent question depending on the student’s response in the testing session. It will be more productive when the questions are assigned based on the ability in the early stage itself. Also, if only the standard multiple-choice questions are focused, then the real embedded nature of computer assessment is sacrificed. Items with different constrained constructs are included to bring out the complex skills, analytical and comprehensive ability of learners. So, this study focus on building up a framework to automatically assign intelligent question with different constructs based on the learner ability while entry. Using Norm Referencing, questions are classified based on item difficulty. Item discrimination is found and there by only the items which can discriminate the performers alone are accumulated in the item pool to have maximum effect of intelligence in tutoring system. The level of new learner is predicted by means of Naïve Bayesian classification and the consequent item is posed. Thereby the objective of Intelligent Tutoring System is achieved by using both adaptability and intelligence in testing.


Intelligent Item Classification Adaptivity in ITS Norm Referencing in ITS 


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Copyright information

© Springer-Verlag GmbH Berlin Heidelberg 2012

Authors and Affiliations

  1. 1.Dept. of MCAAIMIT, St. Aloysius College (Autonomous)MangaloreIndia
  2. 2.Dept. of Computer ScienceGovt. Arts College (Autonomous)SalemIndia
  3. 3.Dept. of Computer ScienceKSR College of Arts and ScienceTiruchengodeIndia

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