Final answer:
Piaget is to cognitive development as Erikson is to social development. Erikson's stages of psychosocial development focus on the social interactions and tasks that shape an individual's sense of self and interpersonal relationships.
Step-by-step explanation:
Piaget is to cognitive development as Erikson is to social development. Cognitive development refers to how children think, explore, and figure things out, which is theorized by Jean Piaget, while social development pertains to how individuals interact with each other and understand and manage their feelings, which is the domain of Erik Erikson's theories. For instance, Erikson's stages of psychosocial development focus on the challenges and tasks that an individual faces throughout life, which influence their social relationships and sense of identity.
Likewise, Lawrence Kohlberg extended Piaget's theory to include moral development, proposing that it proceeds through a series of stages. While Piaget and Kohlberg are associated with cognitive and moral development, respectively, it is Erikson who is closely tied to social development through his theory of psychosocial development.