From time to time reports on the progress of a long time research on the development of speech in infants have been given to this group. Today I should like to discuss three recent findings of this work. The first is concerned with the effect of family occupational status upon the mastery of speech sounds by the infant. The second indicates the effect of the presence in the family of older siblings. And finally, an effort has been made to approach the problem of the diagnosis of speech sound status in the infant with the view of spotting during the period of infancy any indications of retardation.
Proceedings of the Iowa Academy of Science
©1949 Iowa Academy of Science, Inc.
Irwin, Orvis C.
"Further Studies in Infant Speech,"
Proceedings of the Iowa Academy of Science, 56(1), 259-261.
Available at: https://scholarworks.uni.edu/pias/vol56/iss1/36