Variations in the achievements of pupils
Subtitle: a study of the achievements of pupils in the fifth and eleventh grades, and in classes of different sizes.
Series: Contributions to education -- no. 72.
Publisher: Teachers College, Columbia University; AMS Press
Place of publication: New York; [New York
Number of pages: 114
Subjects: Academic achievement; Class size; Educational tests and measurements
Notes: Reprint of the 1914 ed., issued in series: Teachers College, Columbia University.  Contributions to education, no. 72.

Originally presented as the author's thesis, Columbia.

Bibliography: p. 109-114.