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Cognitive Diagnostics for NAEP Proficiency Data NAEP GDM

Author(s):
Xu, Xueli; von Davier, Matthias
Publication Year:
2006
Report Number:
RR-06-08
Source:
ETS Research Report
Document Type:
Report
Page Count:
25
Subject/Key Words:
National Assessment of Educational Progress (NAEP), Item Response Models, General Diagnostic Model (GDM), Cognitive Diagnosis

Abstract

The results of the simulation study show that GDM parameters can be recovered satisfactorily. The GDM under single group and multiple group assumptions were employed to fit NAEP assessment data. The results under these two assumptions and between the GDM and the statistics derived using the operational NAEP model were compared. The findings indicate that it is possible to conduct cognitive diagnosis for NAEP proficiency data.

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