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Single- Versus Double-Scoring of Trend Responses in Trend Score Equating With Constructed-Response Tests RMSD NEAT

Author(s):
Tan, Xuan; Ricker, Kathryn L.; Puhan, Gautam
Publication Year:
2010
Report Number:
RR-10-12
Source:
ETS Research Report
Document Type:
Report
Page Count:
20
Subject/Key Words:
Trend Scoring Method, Trend Score Equating, Constructed-Response Tests, Quality, Root Mean Squared Difference (RMSD), Non-Equivalent-Groups Anchor Test (NEAT) Design

Abstract

This result might be partially attributable to a larger operational sample size (n = 792) and a good correlation between anchor and total score for the trend sample (r = 0.73). These results suggest that under these testing conditions, the NEAT design performed about as well as the SG design, but further research is required to assess the generalizability of the results.

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