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Considering Misconceptions in Automatic Essay Scoring with A-TEST - Amrita Test Evaluation and Scoring Tool

  • Prema Nedungadi
  • Jyothi L
  • Raghu Raman
Conference paper
Part of the Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering book series (LNICST, volume 135)

Abstract

In large classrooms with limited teacher time, there is a need for automatic evaluation of text answers and real-time personalized feedback during the learning process. In this paper, we discuss Amrita Test Evaluation & Scoring Tool (A-TEST), a text evaluation and scoring tool that learns from course materials and from human-rater scored text answers and also directly from teacher input. We use latent semantic analysis (LSA) to identify the key concepts. While most AES systems use LSA to compare students’ responses with a set of ideal essays, this ignores learning the common misconceptions that students may have about a topic. A-TEST also uses LSA to learn misconceptions from the lowest scoring essays using this as a factor for scoring. ‘A-TEST’ was evaluated using two datasets of 1400 and 1800 pre-scored text answers that were manually scored by two teachers. The scoring accuracy and kappa scores between the derived ‘A-TEST’ model and the human raters were comparable to those between the human raters.

Keywords

Feature extraction Essay scoring Text analysis Text mining Latent semantic analysis (LSA) SVD Natural language process- NLP AES 

Notes

Acknowledgment

This work derives direction and inspiration from the Chancellor of Amrita University, Sri Mata Amritanandamayi Devi. We thank Dr. Ramachandra Kaimal for his valuable feedback.

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Copyright information

© Institute for Computer Sciences, Social Informatics and Telecommunications Engineering 2014

Authors and Affiliations

  1. 1.Amrita CREATEAmrita UniversityVallikavu, KollamIndia
  2. 2.Department of Computer ScienceAmrita UniversityVallikavu, KollamIndia

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