مقایسهٔ روش‌ها

	طرح همزمان چندسطحی روش‌های ترکیبی	طرح روش تحقیق ترکیبی توالی‌گرا تبیینی
حوزه	طراحی پژوهش	طراحی پژوهش
خانواده	Process / pipeline	Process / pipeline
سال پیدایش	2000s–2010s	2007 (formalized in Creswell & Plano Clark's mixed methods typology)
پدیدآور	John W. Creswell & Vicki L. Plano Clark; Anthony Onwuegbuzie & colleagues	John W. Creswell & Vicki L. Plano Clark
نوع	Mixed methods research design	Mixed methods research design
منبع بنیادین	Creswell, J. W., & Plano Clark, V. L. (2018). Designing and Conducting Mixed Methods Research (3rd ed.). Sage. ISBN: 978-1483344996	Creswell, J. W., & Plano Clark, V. L. (2018). Designing and Conducting Mixed Methods Research (3rd ed.). Sage. ISBN: 978-1483344379
نام‌های دیگر	simultaneous multilevel mixed methods, parallel multilevel mixed methods, multilevel concurrent mixed methods, QUAN+QUAL multilevel design	explanatory sequential design, QUAN → qual design, two-phase explanatory design, sequential explanatory design
مرتبط	6	6
خلاصه	Concurrent multilevel mixed methods design collects quantitative and qualitative data simultaneously at two or more levels of a nested social system — for example, students within classrooms within schools — then integrates findings across those levels to produce a layered, comprehensive understanding of the phenomenon. The concurrent timing means both data strands are gathered in the same phase rather than one informing the other sequentially.	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.