Killen, Elenbaas, and Rutland [this issue] report on an impressive line of re-search, which examines reasoning about social exclusion and denial of resources. By merging perspectives from moral development, and more specifically social domain theory, with research on intergroup theory, the research in social reasoning development (SRD) has led to new and important findings in children’s judgments of social experiences among groups. These findings are important for understanding societal level social issues as well as moral development. Bias that appears in adulthood may begin in childhood. Understanding the roots of bias is important for understanding social injustice, and as the authors show, efforts to address bias in childhood can have some success.
Supplementary notes can be added here, including code and math.