Final answer:
The family system property that reflects interdependence within a family is known as the systems theory. This theoretical perspective sees changes in one part of the family as having effects on the whole family unit, emphasizing the interconnectedness of family members and their roles.
Step-by-step explanation:
The family system property reflected in the assertion that "a change in one part of the family has a reverberating impact on other parts of the family system" is often described by the theoretical perspective that views society as having a system of interdependent, inherently connected parts. This perspective, known as the systems theory, is applicable to understanding family dynamics. The systems theory suggests that families operate as a whole unit, and changes in one aspect of the family, whether it be a family member's behavior, roles, or even family size, will affect the entire family system.
For example, when the political attitudes or beliefs of one family member change, this may influence the perspectives and discussions within the family, contributing to the political socialization of all its members. Similarly, an alteration in family structure, such as a shift in roles due to a birth or a marriage, requires readjustments from all members of the family unit. Through this lens, family is seen not just as individual members but as a collective where each person's actions and roles are interconnected.