A general model for item dependency
By: Terry A. Ackerman, Judith A. Spray
Contributors: Spray, Judith A; American College Testing Program
Series: ACT research report series -- 87-9; ACT research report -- 87-9
Publisher: American College Testing Program
Published: 1987
Place of publication: Iowa City, Iowa
Language: eng
Number of pages: 20
Subjects: ACT Assessment; Item response theory
Notes: "September 1987."

Bibliography: p. 12