Final answer:
Early research on interactional justice focused on the principles of distributive justice and how to fairly distribute resources in a society, a subject that is deeply entwined with social studies and sociology.
Step-by-step explanation:
Early research differentiating interactional justice from other forms of justice includes examining distributive justice, which involves principles that ensure fairness in the distribution of wealth, goods, and services within a society. The concept of distributive justice raises questions about whether a society should distribute resources based on need or allow for personal freedom that could result in significant inequalities. Reviews of varying principles like Strict Egalitarianism and the Difference Principle reveal the complex debates at the heart of social justice and resource allocation. Carol Gilligan believed that earlier research into morality had overlooked sympathetic reactions to moral situations, and Kenneth and Mamie Clark demonstrated that segregation was harmful with their sociological research, illustrating the societal impact of justice perspectives on individuals and communities.