手法を比較

	定量的優位性を有する多段階混合研究法デザイン	多層混合研究法デザイン
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	Late 1990s–2000s
提唱者	Creswell & Plano Clark (multiphase framework); Tashakkori & Teddlie (priority notation)	Bonnie Nastasi, John Hitchcock, and collaborators; systematized by Creswell & Plano Clark
種類	Mixed methods research design	Mixed methods research design
原典	Creswell, J. W., & Plano Clark, V. L. (2018). Designing and Conducting Mixed Methods Research (3rd ed.). Sage.	Creswell, J. W., & Plano Clark, V. L. (2018). Designing and Conducting Mixed Methods Research (3rd ed.). Sage Publications. ISBN: 978-1483357829
別名	QUAN-dominant multiphase MMR, quantitatively driven multiphase design, multiphase mixed methods with quantitative priority, QUAN-priority multiphase design	multilevel MMR, nested mixed methods, hierarchical mixed methods design, cross-level mixed methods
関連	6	5
概要	A quantitative-dominant multiphase mixed methods design conducts a series of distinct research phases — at least two, often three or more — in which quantitative data and analyses bear the primary weight of answering the research questions, while qualitative components serve a supporting or explanatory role. Phases are linked by explicit integration points where findings from one phase inform the design or interpretation of the next.	Multilevel mixed methods design is a research approach that collects and integrates both quantitative and qualitative data at two or more distinct levels of a social or organizational hierarchy — for example, individuals nested within classrooms, classrooms within schools, or patients within healthcare teams. By pairing quantitative measurement of outcomes at one level with qualitative exploration of meaning at another, researchers gain a richer, more complete picture than either strand alone could provide.