An empirical study of certain tests for individual differences
By: by Mary Theodora Whitley ...
Series: Archives of psychology -- no. 19
Publisher: The Science press
Published: 1911
Place of publication: New York
Language: eng
Number of pages: 146
Subjects: Psychophysiology
Notes: Columbia contributions to philosophy and psychology, vol. XX, no. 1.

Issued also as thesis (PH. D.) Columbia university.