Difficulty prediction of test items.
By: New York, Bureau of Publications, Teachers College, Columbia University, 1947.
Publisher: AMS Press
Published: 1972
Place of publication: [New York
Language: eng
Number of pages: 55
Subjects: Educational tests and measurements
Notes: Bibliography: p. 54-55.
Reprint of the 1947 ed., issued in series: Teachers College, Columbia University. Contributions to education, no. 941.
Originally presented as the author's thesis, Columbia.