An evaluation of three approximate item response theory models for equating test scores
By: Gary L. Marco, Marilyn S. Wingersky, James B. Douglass
Contributors: Wingersky, Marilyn S.; Douglass, James Bruce
Series: Research report -- RR-85-46; Research report (Educational Testing Service) -- RR-85-46
Publisher: Educational Testing Service
Published: 1985
Place of publication: Princeton, N.J
Language: eng
Number of pages: 72
Subjects: Examinations; Scoring; Item response theory
Notes: "December 1985."

Includes bibliographical references (p. 32-35).