Final answer:
The term that describes Jamal's inability to understand others' perspectives and the belief that everyone shares his own views is known as egocentrism.
Step-by-step explanation:
Jamal is not able to take the perspective of others, and instead thinks that everyone sees, thinks, and feels just as they do. The term that best describes this cognitive bias is egocentrism, which indicates a focus on one's own perspective while failing to recognize that others may have different thoughts, feelings, and viewpoints. This developmental stage of egocentrism is commonly noted in young children and is a concept developed by Jean Piaget, a famous developmental psychologist. Egocentric individuals are unable to infer the perspectives of other people and assume that their own perspective is the only one that exists or matters.