An analysis of age-progress curves as related to the mental growth curve
Subtitle: a study of vocabulary
By: by Roy M. Hamlin ...
Series: Archives of psychology..; no. 293
Published: 1944
Place of publication: New York
Language: eng
Number of pages: 37
Subjects: Intelligence tests.; Age.; Vocabulary.
Notes: Bibliography: p. 36-37.
Issued also as thesis (PH. D.) Columbia university.