Studies of a Latent-Class Signal-Detection Model for Constructed-Response Scoring
- Author(s):
-
DeCarlo, Lawrence T.
- Publication Year:
- 2008
- Report Number:
-
RR-08-63
- Source:
-
ETS Research Report
- Document Type:
- Report
- Page Count:
- 55
- Subject/Key Words:
-
Constructed Response,
Rater Effects,
Signal-Detection Theory,
Latent Class Models,
Classification,
Agreement,
Block-design tests.
Abstract
The relation of rater parameters to agreement statistics and classification accuracy is examined. The effects of using a balanced, incomplete block design are compared to those for a fully crossed design. The model is applied to several ETS databases.
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