Ernest observes that his father and mother both have professional careers, and also both contribute equally to the housework. As a result, Ernest regularly tries to help do dishes and fold laundry, so he can be helpful around the house. This is a good example of the theory of gender development.

Social Learning.

Explanation:

The father of this theory is called Albert Bandura and he proposed this theory in the year 1977.

This Social Development Theory (SDT) mainly asserts that social interaction has a vital role in the cognitive development process. With this concept, Vygotsky's theory opposes that of Jean Piaget's Cognitive Development Theory because Piaget explains that a person undergoes development first before he achieves learning, whereas Vygotsky argues that social learning comes first before development. Through the Social Development Theory, Vygotsky states that the cultural development of a child is firstly on the social level called inter psychological, and secondly on the individual or personal level called intra psychological.

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more than 1 person for sure