手法を比較

	埋め込み多層混合手法デザイン	多段階混合研究デザイン
分野	研究デザイン	研究デザイン
系統	Process / pipeline	Process / pipeline
提唱年	2000s–2010s	2007 (first edition of Designing and Conducting Mixed Methods Research)
提唱者	Creswell & Plano Clark; Teddlie & Tashakkori (mixed methods typology literature)	John W. Creswell & Vicki L. Plano Clark
種類	Mixed methods research design	Mixed methods research design
原典	Creswell, J. W., & Plano Clark, V. L. (2011). Designing and Conducting Mixed Methods Research (2nd ed.). Sage. ISBN: 978-1412975179	Creswell, J. W., & Plano Clark, V. L. (2018). Designing and Conducting Mixed Methods Research (3rd ed.). Sage. ISBN: 978-1483substitute
別名	embedded multilevel design, nested multilevel mixed methods, multilevel embedded MMR, embedded hierarchical mixed methods	multiphase design, multiproject mixed methods, programmatic mixed methods, multistage mixed methods
関連	4	6
概要	Embedded multilevel mixed methods design nests a secondary qualitative (or quantitative) strand within a primary study that spans hierarchically organized levels — such as students within classrooms, employees within organizations, or patients within clinics. The dominant strand addresses the research question at the structural level while the embedded component enriches understanding at a different level of the hierarchy, producing complementary insights that neither strand could yield alone.	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.