مقایسهٔ روش‌ها

	طرح روش تحقیق ترکیبی توالی‌گرا تبیینی	پژوهش مطالعه موردی
حوزه	طراحی پژوهش	کیفی
خانواده	Process / pipeline	Process / pipeline
سال پیدایش	2007 (formalized in Creswell & Plano Clark's mixed methods typology)	1984 (seminal codification)
پدیدآور	John W. Creswell & Vicki L. Plano Clark	Robert K. Yin (systematised in Case Study Research, 1984)
نوع	Mixed methods research design	Qualitative research design
منبع بنیادین	Creswell, J. W., & Plano Clark, V. L. (2018). Designing and Conducting Mixed Methods Research (3rd ed.). Sage. ISBN: 978-1483344379	Yin, R.K. (2018). Case Study Research and Applications: Design and Methods (6th ed.). Sage. ISBN: 978-1506336169
نام‌های دیگر	explanatory sequential design, QUAN → qual design, two-phase explanatory design, sequential explanatory design	Vaka Çalışması (Case Study), case study design, case study methodology
مرتبط	6	5
خلاصه	The explanatory sequential mixed methods design is a two-phase research approach in which a quantitative study is conducted first, and qualitative data are then collected specifically to help explain or elaborate the initial quantitative results. The quantitative phase carries greater priority; the qualitative phase is purposefully built around the findings — such as surprising results, outliers, or statistically significant relationships — that need deeper interpretation.	Case study research is a qualitative research design that investigates a specific phenomenon, individual, group, organisation, or event in depth within its real-world context. Systematised by Robert K. Yin in 1984, it supports single-case and multiple-case designs and draws on multiple data sources — interviews, observation, documents, and artefacts — to build a rich, contextualised account of a bounded unit.