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ERIC Number: ED458268
Record Type: Non-Journal
Publication Date: 2001
Pages: 19
Abstractor: N/A
Reference Count: N/A
ISBN: N/A
ISSN: N/A
Using Lexical Semantic Techniques To Classify Free-Responses.
Burstein, Jill; Wolff, Susanne; Lu, Chi
The research described in this paper shows the use of lexical semantic techniques for automated scoring of short-answer and essay responses from performance-based test items. Researchers used lexical semantic techniques in order to identify the meaningful content of free-text responses for small data sets. One data set involved 172 training responses in a formulating hypotheses situation, with 32 categories. A second set contained 200 training responses and 228 test items, also of the formulating hypotheses type. The third set consisted of 200 essays from a paper-and-pencil test that had been rated "excellent" by human raters. The research demonstrated applications of lexical semantic techniques for free-text responses of varying length and in different subject domains. Prototype designs and the results of the different prototype applications are discussed. (Contains 5 tables and 23 references.) (SLD)
Publication Type: Reports - Evaluative
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A