An experiment in the measurement of mental deterioration
By: by Harriet Babcock ...
Published: 1930
Place of publication: New York
Language: eng
Number of pages: 105
Subjects: Mental efficiency; Psychological tests
Notes: Vita.

"Reprinted from Archives of psychology ... no. 117."

Thesis (Ph. D.)--Columbia university, 1930.

Bibliography: p. 66-68.