Social Interactionist Theory is a framework in psychology and sociology that emphasizes the importance of social interactions in the development of individuals. It suggests that people learn and create meaning through their interactions with others, shaping their identities and understanding of the world. This theory highlights the role of language and communication in socialization processes. Central to this theory is the idea that individuals are not isolated but are influenced by their social environments. Lev Vygotsky, a key figure in this area, argued that cognitive development is deeply rooted in social contexts, where collaboration and dialogue with others facilitate learning and growth.