Evaluating the Construct-Coverage of the e-rater Scoring Engine AES
- Author(s):
- Quinlan, Thomas; Higgins, Derrick; Wolff, Susanne
- Publication Year:
- 2009
- Report Number:
- RR-09-01
- Source:
- ETS Research Report
- Document Type:
- Report
- Page Count:
- 35
- Subject/Key Words:
- Automated Essay Scoring (AES), Electronic Essay Rater (E-rater), Writing Assessment
Abstract
Factor analyses conducted by Attali and Powers (2008) suggest that e-rater features capture low-level aspects of essay quality, such as sentence complexity, vocabulary, and conventions. Future e-rater development should focus on (a) deepening and expanding coverage of the construct, such as by developing measures of essay content and organization, as well as on (b) addressing accuracy issues in existing features.
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- http://dx.doi.org/10.1002/j.2333-8504.2009.tb02158.x