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ERIC Number: ED022536
Record Type: Non-Journal
Publication Date: 1966
Pages: 65
Abstractor: N/A
Reference Count: N/A
The Two Year Old.
Bayley, Nancy
This study attempted to find which factors determine the course of mental growth. The hypotheses were as follows: (1) early growth rates are rapid, chaotic, and uneven; (2) intellectual functions become more complex at age 2; (3) language is of overriding importance in intellectual growth; (4) more developed individuals have a longer infancy period but accelerate later; (5) effects of environment are manifest at age 2; and (6) parental warmth is important for healthy development. A review of the Berkeley Growth Studies and related studies showed that (1) early mental growth rates are uneven but not chaotic; (2) genetic factors are important in determining intellectual capacity, and around age 2 the nature of mental functions become more complex; (3) maternal attitudes affect mental scores differently, before and after age 2; and (4) with retarded children, lack of language (and, therefore, communication) and a nonstimulating environment can retard mental growth. It was concluded that many factors which affect mental growth converge at age 2. Further research, however, is needed to identify and specify the nature of the processes of these factors. Numerous tables and a bibliography are included. (JS)
Publication Type: N/A
Education Level: N/A
Audience: N/A
Language: N/A
Sponsor: Ford Foundation, New York, NY.
Authoring Institution: Southern Association of Colleges and Schools, Atlanta, GA.; Durham Education Improvement Program, NC.
Identifiers - Assessments and Surveys: Bayley Scales of Infant Development