Critical discourse analysis (CDA) is an interdisciplinary approach to analyzing written, spoken, and signed texts that seeks to reveal the ideological assumptions and power relationships that are part of discourse. The leading scholars who developed CDA include Norman Fairclough, Ruth Wodak, and Teun van Dijk. According to van Dijk, CDA examines how discursive sources of power, dominance, and inequality are maintained and reproduced through social, political, and historical contexts. CDA goes beyond merely describing discourse and aims to explain how and why discourses function to reproduce social power relations.