According to Jean Piaget’s theory of cognitive development, which of the following types of thinking are demonstrated at the preoperational level? 1. egocentric 2. lack of understanding 3. law of conservation centration 4. logical abstract

1. egocentric                                                          

Explanation:

Egocentrism: In psychology, the term "egocentrism" is described as a process that involves a child's incapability to see or look for a specific situation or event from someone else's viewpoint.

Egocentrism was proposed by a psychologist named Jean Piaget in his theory of cognitive development and generally comes under the "preoperational stage" that starts at the age of four years and lasts through seven years of age.

While encountering egocentrism, a child tends to assume that the other person feels, sees, and hears in the same manner as he or she does.

In the question above, the given statement signifies "egocentric".