Clusters as the unit of analysis in differential item functioning
By: Randy Elliot Bennett, Donald A. Rock and Inge Novatkoski
Contributors: Rock, Donald A.; Novatkoski, Inge
Series: Research report / Educational Testing Service -- RR-88-70; Research report (Educational Testing Service) -- RR-88-70
Publisher: Educational Testing Service
Published: 1988
Place of publication: Princeton, N.J
Language: eng
Number of pages: 49
Subjects: Examinations; Validity; Cluster analysis
Notes: "December 1988"--Cover.

Includes bibliographical references (p. 32-35).