According to Schwartz and Scott (2007) a family is a group of individuals who are affiliated or related through consanguinity, an affinity or through mere co-residence. According to my understanding of what I can refer to as my family, I would define it as constituting of those who we are closely related by blood. This would be composed of my father, mother and grandparents.
Therefore my understanding of my family would be a social group consisting of my two parents, grand parents and I. Because my family is big, my mother has chosen to remain behind to take care of my grandparents and therefore they are a part of our family.