The validity of corrections for chance in objective examinations involving multiple-choice
By: by Mark H. De Graff ...
Published: 1926
Place of publication: Chicago]
Language: eng
Number of pages: 88
Subjects: Examinations; Psychological tests
Notes: "Reprinted from Ruch, et al: Objective examination methods in the social studies, copyright, 1926, Scott, Foresman and company."

Thesis (Ph. D.)--University of Iowa, 1925.