مقایسهٔ روش‌ها

	تحلیل گفتمان انتقادی مبتنی بر موارد متعدد	طراحی مطالعه موردی چندگانه
حوزه	کیفی	کیفی
خانواده	Process / pipeline	Process / pipeline
سال پیدایش	1990s–2000s (CDA foundations ~1989–1995; multiple case integration in applied discourse research)	1980s–1990s (Yin's first edition 1984; Stake's collective case study concept 1995)
پدیدآور	Norman Fairclough (CDA); Robert K. Yin (multiple case design)	Robert K. Yin (systematic replication logic); Robert E. Stake (naturalistic/collective case tradition)
نوع	Qualitative research design and analytic method	Qualitative research method
منبع بنیادین	Fairclough, N. (1995). Critical Discourse Analysis: The Critical Study of Language. Longman. ISBN: 978-0582219526	Yin, R. K. (2018). Case Study Research and Applications: Design and Methods (6th ed.). Sage. ISBN: 978-1506336169
نام‌های دیگر	multi-case CDA, comparative critical discourse analysis, cross-case CDA, multiple case CDA	comparative case study, multi-site case study, collective case study, cross-case analysis
مرتبط	5	6
خلاصه	Multiple case-based critical discourse analysis (multi-case CDA) combines the comparative logic of multiple case study design with the ideological and power-focused analytic apparatus of critical discourse analysis. The researcher selects two or more purposefully chosen cases, collects relevant texts or spoken discourse within each, applies CDA to reveal how language constructs power relations and ideologies within each case, and then synthesises findings across cases to identify patterns, contrasts, and broader sociocritical insights that a single-case design could not yield.	Multiple-case study design investigates two or more bounded real-world cases using the same research protocol, then compares findings across cases to identify patterns, contrasts, and explanatory insights that a single case could not produce. Developed primarily through Robert Yin's replication logic and Robert Stake's collective case tradition, the approach is particularly powerful when a researcher needs to determine whether a phenomenon occurs under varied conditions or to test an emerging theoretical explanation against rival contexts.