مقایسهٔ روش‌ها

	طراحی چندمرحله‌ای روش‌های ترکیبی	طرح روش ترکیبیِ تثلیث همزمان (Concurrent Triangulation Mixed Methods Design)
حوزه	طراحی پژوهش	طراحی پژوهش
خانواده	Process / pipeline	Process / pipeline
سال پیدایش	2007 (first edition of Designing and Conducting Mixed Methods Research)	2007 (formally named in Creswell & Plano Clark, 1st ed.)
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. (2011). Designing and Conducting Mixed Methods Research (2nd ed.). Sage. ISBN: 978-1412975179
نام‌های دیگر	multiphase design, multiproject mixed methods, programmatic mixed methods, multistage mixed methods	convergent parallel design, triangulation design, QUAN+QUAL concurrent design, simultaneous triangulation
مرتبط	6	5
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.	The concurrent triangulation mixed methods design collects quantitative and qualitative data simultaneously, analyzes each strand independently, and then merges the results to assess whether the two data sources corroborate one another. Often called the convergent parallel design, it is one of the foundational configurations in mixed methods research and is chosen specifically when the researcher wants to cross-validate or triangulate findings from two distinct methodological traditions.