In this scientific article, the concept of envy, manifested in sibling relationships between children growing up in single-generation and multi-generation families, is analyzed at the level of the dissertation research. Within the framework of the study, the influence of the family structure on the mental development, emotional state, social adaptation, and interpersonal relationships of children is highlighted from a scientific and theoretical point of view. On the basis of leading psychological theories and modern scientific sources, the factors of the emergence of envy, its features characteristic of age periods, and the specific differences in its manifestation in single-generation and multi-generational families are analyzed. The results of the article serve to develop practical recommendations aimed at improving the process of family upbringing, improving sibling relationships, and preventing negative emotional states in children.

envy, sibling relationships, single-generation family, multi-generation family, family psychology, raising children, emotional development.

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