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	Utvärderingsorienterad multilevel mixed methods-design	Multilevel Modeling
Ämnesområde	Forskningsdesign	Forskningsstatistik
Familj	Process / pipeline	Process / pipeline
Ursprungsår	2000s–2010s	1992
Upphovsperson	Donna M. Mertens; John W. Creswell & Vicki L. Plano Clark (systematization)	Anthony Bryk and Stephen Raudenbush
Typ	Mixed methods evaluation design	Method
Ursprungskälla	Mertens, D. M. (2010). Research and Evaluation in Education and Psychology: Integrating Diversity with Quantitative, Qualitative, and Mixed Methods (3rd ed.). Sage. ISBN: 978-1412975551	Bryk, A. S., & Raudenbush, S. W. (1992). Hierarchical Linear Models: Applications and Data Analysis Methods. SAGE Publications.
Alias	multilevel mixed methods evaluation, hierarchical mixed methods evaluation, MLM mixed methods, nested mixed methods evaluation	HLM, mixed-effects models, random effects models, MLM
Närliggande	2	3
Sammanfattning	Evaluation-oriented multilevel mixed methods is a research design that combines quantitative and qualitative data across hierarchically nested levels of an organization or system — such as students within classrooms within schools — to evaluate a program, policy, or intervention. By capturing outcomes, processes, and contextual factors simultaneously at each level, this design produces richer evaluative inferences than either purely statistical multilevel models or single-level qualitative evaluations alone.	Multilevel modeling (also called hierarchical linear modeling, mixed-effects modeling) is a statistical framework for analyzing data organized in nested or clustered structures—students within schools, patients within hospitals, repeated measures within individuals. Developed by Bryk and Raudenbush (1992), it accounts for dependency among observations and partitions variance into levels (within-cluster and between-cluster), enabling valid inference and revealing context effects. Essential in education, medicine, organizational research, and any field where data have natural hierarchies.