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	Medieringsanalys på flera nivåer	Strukturell ekvationsmodellering
Ämnesområde	Statistik	Forskningsstatistik
Familj	Hypothesis test	Process / pipeline
Ursprungsår	2003	1921
Upphovsperson	Kenny, Korchmaros & Bolger	Sewall Wright
Typ	Multilevel structural model	Method
Ursprungskälla	Kenny, D. A., Korchmaros, J. D., & Bolger, N. (2003). Lower level mediation in multilevel models. Psychological Methods, 8(2), 115–128.	Jöreskog, K. G., & Sörbom, D. (1973). LISREL: A general computer program for estimating a linear structural equation system. Research Bulletin 73-5. University of Stockholm.
Alias	multilevel mediation, hierarchical mediation, cross-level mediation, 1-1-1 mediation	SEM, path analysis, latent variable modeling, causal modeling
Närliggande	8	3
Sammanfattning	Multilevel mediation analysis is a parametric structural method that estimates indirect (mediated) effects within hierarchically nested data, such as students within schools or employees within organisations. Formalised for lower-level mediation in multilevel models by Kenny, Korchmaros and Bolger (2003), it simultaneously handles individual-level (1-1-1) and group-level (2-2-1 or 2-1-1) mediation pathways in a single coherent framework.	Structural equation modeling (SEM) is a comprehensive statistical framework combining path analysis (Sewall Wright, 1921) and confirmatory factor analysis to test complex causal models linking observed and latent variables. Formalized by Jöreskog (1973) with LISREL software, SEM enables simultaneous estimation of measurement relationships (how variables measure latent constructs) and structural relationships (how constructs influence outcomes), making it powerful for theory testing in psychology, epidemiology, organizational research, and health sciences where complex mediation, moderation, and latent processes require integrated analysis.