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Automatic Essay Scoring System

Author(s):
Attali, Yigal; Burstein, Jill; Andreyev, Vyacheslav
Patent Issued:
Nov 09, 2010
Patent Number:
7,831,196
Source:
ETS Patent
Document Type:
Patent
Family ID:
34572780
Subject/Key Words:
Patent, Active Patent, Automated Scoring and Natural Language Processing, Automated Essay Scoring (AES), Essay Assessment, Writing Errors

Abstract

A method of grading an essay using an automated essay scoring system is provided. The method comprises the steps of deriving a set of predetermined features from the essay, wherein the predetermined feature set comprises one or more features that are independent from the test prompt, scoring the feature set with a scoring equation, wherein a multiple regression analysis with graded essay data produces weights for the scoring equation, generating a raw score for the essay; and processing the raw score for the essay into a score category based on an adaptive cutoff algorithm. Also provided is a method of generating a model in which to grade essays, wherein the data used to generate the model is independent from the test prompt or essay topic.

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