A comparative study of online pretest item calibration/scaling methods in CAT
By: Jae-Chun Ban ... [et al.]
Contributors: Ban, Jae-Chun; American College Testing Program
Series: ACT research report series -- 2000-11
Publisher: ACT, Inc.
Published: 2000
Place of publication: Iowa City, Iowa
Language: eng
Number of pages: 26
Subjects: Computer adaptive testing; Examinations -- Design and construction -- Data processing; Item response theory -- Mathematical models; Scaling (Social sciences)
Notes: "December 2000"--Cover

Includes bibliographical references (p. 19-20)