A Preliminary Scale for the Measurement of the Mentality of Infants

Infancy.

“…That is to say, tests and observation periods will usually reveal the fact, if a baby is considerably retarded or if he is considerably advanced for his age. Within these two fields as well as within the field of average development, not a great deal of discrimination can as yet be made for predictive purposes (5,14,30,45,52,54,62,78,80,109).…”