Notes on Linear Equating Methods for the Non-Equivalent-Groups Design NEAT
- Author(s):
-
von Davier, Alina A.
- Publication Year:
- 2003
- Report Number:
-
RR-03-24
- Source:
-
ETS Research Report
- Document Type:
- Report
- Page Count:
- 19
- Subject/Key Words:
-
Non-Equivalent-Groups Anchor Test (NEAT) Design,
Test Linking,
Equating,
Observed-Score Equating,
Chain Linear Equating
Abstract
This paper focuses on three observed-score methods for linear equating in a Non-Equivalent-Groups-Anchor Test (NEAT) design - Tucker, Levine observed-score, and chain. The methods and their assumptions are described, and theoretical conditions under which the three methods give identical results are presented.
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