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Using Natural Language Processing Tools to Classify Student Responses to Open-Ended Engineering Problems in Large Classes

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Conference

2014 ASEE Annual Conference & Exposition

Location

Indianapolis, Indiana

Publication Date

June 15, 2014

Start Date

June 15, 2014

End Date

June 18, 2014

ISSN

2153-5965

Conference Session

Data Analytics in Education

Tagged Division

Computers in Education

Page Count

15

Page Numbers

24.1338.1 - 24.1338.15

Permanent URL

https://peer.asee.org/23271

Download Count

39

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Paper Authors

biography

Matthew A. Verleger Embry-Riddle Aeronautical Univ., Daytona Beach

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Matthew Verleger is Assistant Professor in Freshman Engineering at Embry-Riddle Aeronautical University. He has a BS in Computer Engineering, an MS in Agricultural & Biological Engineering, and a PhD in Engineering Education, all from Purdue University. Prior to joining the Embry-Riddle faculty, he spent two years as an Assistant Professor of Engineering Education at Utah State University. His research interests include Model-Eliciting Activities, online learning, and the development of software tools to facilitate student learning.

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Abstract

Using Natural Language Processing Tools to Classify Student Responses to Open-Ended Engineering Problems in Large ClassesPeer review can be a beneficial pedagogical tool for providing students both feedback and variedperspectives. Despite being a valuable tool, the best mechanism for assigning reviewers toreviewees is still often blind random assignment. This research represents the first step in alarger effort to find an improved method for matching reviewers to reviewees. By automatingthe classification of student work, reviewer quality and reviewee need can be assessed. With thatassessment, the best reviewers can be assigned to the neediest teams, while the most self-sufficient teams can be assigned reviewers who may need to see higher quality work.The purpose of this paper is to present the preliminary findings from an effort to classify studentteam performance on Model-Eliciting Activities (MEAs) using natural language processingtools. MEAs are realistic, open-ended, client-driven engineering problems where teams ofstudents produce a written document describing the steps of how to solve the problem.Archival data containing expert evaluations to MEAs were used to test different natural languageprocessing tools in an attempt to identify which tools could most accurately assign scores similarto an expert. The research did not re-implement the selected algorithms, but rather used off-the-shelf libraries to explore the value of their application to this context.Using a split-sample training-testing set, the “Bagged Decision Tree” and “Random Forest”algorithms were used to classify sample solutions against 11 MEA rubric dimensions.Performance on each rubric item averaged between 60% and 85% accurate, depending on theitem. The implementation of these algorithms also revealed words and phrases commonly usedin higher quality samples.This paper will focus on how the data was obtained and prepared, how the different algorithmswere utilized, how the algorithms performed in the classification tests, what the results indicateabout our implementation of MEAs and how the results will be informing the next stages of theresearch project.  

Verleger, M. A. (2014, June), Using Natural Language Processing Tools to Classify Student Responses to Open-Ended Engineering Problems in Large Classes Paper presented at 2014 ASEE Annual Conference & Exposition, Indianapolis, Indiana. https://peer.asee.org/23271

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