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Using Trilinear Plots for NAEP State Data NAEP

Wainer, Howard
Publication Year:
Report Number:
RR-94-59, PSRTR-94-06
ETS Research Report
Document Type:
Page Count:
Subject/Key Words:
Graphical Analysis, National Assessment of Educational Progress (NAEP), State Programs


The purpose of this report is to present a case for adjusting the scores for free response items in the Advanced Placement tests. Using information about the rating process from the reliability studies, administrations of the Advanced Placement test for three subject areas are analyzed, and it is shown that the minimum squared error score adjustments proposed by Longford (1993) result in changed AP grades for an appreciable percentage of the examinees. (24pp.)

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