مقایسهٔ روش‌ها

	مدل‌سازی چندسطحی	مدل‌سازی معادلات ساختاری (SEM)
حوزه	آمار پژوهش	آمار پژوهش
خانواده	Process / pipeline	Process / pipeline
سال پیدایش	1992	1921
پدیدآور	Anthony Bryk and Stephen Raudenbush	Sewall Wright
نوع	Method	Method
منبع بنیادین	Bryk, A. S., & Raudenbush, S. W. (1992). Hierarchical Linear Models: Applications and Data Analysis Methods. SAGE Publications.	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.
نام‌های دیگر	HLM, mixed-effects models, random effects models, MLM	SEM, path analysis, latent variable modeling, causal modeling
مرتبط	3	3
خلاصه	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.	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.