Performance studies is an interdisciplinary academic field that uses performance as a lens and a tool to study the world. The term "performance" is broad, and can include artistic and aesthetic performances like concerts, theatrical events, and performance art; sporting events; social, political and religious events like rituals, ceremonies, proclamations and public decisions; certain kinds of language use; and those components of identity which require someone to do, rather than just be, something. According to Mary S. Strine, Beverly W. Long, and Mary Frances HopKins, "scholars in interpretation and performance... recognize and expect disagreement not only about the qualities that make a performance "good" or "bad" in certain contexts, but also about what activities and behaviors appropriately constitute performance and not something else." Consequently, performance studies is an interdisciplinary field, drawing from theories and methods of the performing arts, anthropology, sociology, literary theory, cultural studies, speech communication, and others.