Self-Help Children's Clothing and Standardized Sizing
[T]he attention given lately to child study throughout the country has emphasized the need of more comfortable and convenient clothing for children which would encourage 'self-help' and thus stimulate mental development. Although there has been much discussion of this need and ways of meeting it, no definite designs for such garments were available. The Bureau has, therefore, as part of its cotton and wool utilization program, developed by experimental methods garments which have proved valuable to mothers and workers in this field. The designs are being accepted by pattern and garment manufacturers, are being advocated by extension workers, and are having a noticeable effect on children's clothing throughout the country.
--Ruth O'Brien. "The Program of Textile Research in the Bureau of Home Economics." (1930). Journal of Home Economics, 9(4), p. 285.