PL
The theory of well-being in developmental researches on a familyThe object of the study was to present the applications of positive psychology, particularly its leading principle – orientation to well-being, in studies on the ongoing process of fulfilling social developmental tasks in the family. This approach confirming the premise of life-span psychology, the multidimensional and holistic approach to man seems particularly useful in analysing the adult members of the family such as parents and children reaching adulthood. A model of parental subjective well-being regarding the Empty Nest stage of family life has been devised on the basis of a triadic (psychological, social and emotional) concept of subjective well-being.