Separate versus concurrent estimation of IRT item parameters in the common item equating design
By: Bradley A. Hanson, Anton A. Béguin.
Contributors: Béguin, Anton A.; American College Testing Program.
Series: ACT research report -- 99-8
Publisher: ACT, Inc.
Published: 1999
Place of publication: Iowa City, IA
Language: eng
Number of pages: 31
Subjects: Item response theory.; Educational tests and measurements.; Estimation theory.
Notes: "December 1999"--Cover.

Includes bibliographical references (p. 19).