With interest in the field of child development emerging in the early twentieth century, many theories have been formed in an effort to understand the physical, educational, social, emotional, and cognitive growth that children undergo from birth into early adulthood (Cherry, 2013). In particular, developmental theories are organized systems of “principles and explanations of certain aspects of child development” (Swim, 2008).
In this regard, this paper discuses three of the major developmental theories, namely the behavioral theory, the cognitive theory, and the sociocultural theory.
Summaries of three Major Developmental Theories
The behavioral theory focuses on the behavior of people, which can be observed ( ...