study of modified-Guttman and IRT-based level scoring procedures for Work Keys assessments
By: E. Matthew Schulz, Michael J. Kolen, W. Alan Nicewander.
Contributors: Kolen, Michael J.; Nicewander, W. Alan.; American College Testing Program.
Series: ACT research report series -- 97-7.
Publisher: ACT, Inc.
Published: 1997
Place of publication: Iowa City, Iowa
Language: eng
Number of pages: 53
Subjects: Examinations -- Scoring -- Evaluation; Item response theory
Notes: "October 1997"--Cover.

Includes bibliographical references (p. 51-53).