مقایسهٔ روش‌ها

	طراحی چندمرحله‌ای روش‌های ترکیبی	طرح روش‌های ترکیبی مداخله‌ای
حوزه	طراحی پژوهش	طراحی پژوهش
خانواده	Process / pipeline	Process / pipeline
سال پیدایش	2007 (first edition of Designing and Conducting Mixed Methods Research)	2000s–2010s (systematised in Creswell & Plano Clark, 2011–2018)
پدیدآور	John W. Creswell & Vicki L. Plano Clark	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: 978-1483substitute	Creswell, J. W., & Plano Clark, V. L. (2018). Designing and Conducting Mixed Methods Research (3rd ed.). Sage. ISBN: 978-1483344379
نام‌های دیگر	multiphase design, multiproject mixed methods, programmatic mixed methods, multistage mixed methods	intervention MMR design, mixed methods intervention study, intervention-embedded mixed design, trial-embedded mixed methods
مرتبط	6	6
خلاصه	The multiphase mixed methods design is a sustained research program in which quantitative and qualitative strands are combined across three or more sequential phases — or across multiple related projects — to address a central program objective. Each phase builds on the prior phase's findings, making the design well-suited to long-term evaluation, intervention development, and large-scale program assessment where a single data-collection cycle cannot fully address the complexity of the research problem.	Intervention mixed methods design embeds qualitative data collection within an experimental or quasi-experimental study so that process, mechanism, and participant experience are captured alongside outcome measurement. The quantitative strand tests whether the intervention works; the qualitative strand explains how and why it works — or does not. The two strands may be sequenced before, during, or after the intervention phase, or run concurrently, depending on the research questions.