Four-year-old kanaan's mother makes him a ham and cheese sandwich for lunch. however, kanaan refuses to eat the sandwich, stating that he does "not like cheese." when kanaan's mother removes the cheese from the sandwich, he still refuses to eat and again states that he does "not like cheese." this is an example of

This is a good example of irreversibility.

Irreversibility is a concept present in Jean Piaget's theory of development. It is part of the preoperational thinking of children between 2 and 4 years old. This concept refers to the inability of children to recognize that an action or object can have two different forms or categories. That is, Kannan does not understand that the Sandwich can be prepared with different ingredients and if you change the ingredients the taste changes, she thinks that the sandwich always tastes the same.

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The best sociological research method would have to be using experiments although it has some disadvantages as well