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| Μικτό μοντέλο επιδράσεων× | Μοντελοποίηση Δομικών Εξισώσεων (SEM)× | |
|---|---|---|
| Πεδίο | Στατιστική | Στατιστική |
| Οικογένεια≠ | Regression model | Latent structure |
| Έτος προέλευσης≠ | 1982 | 1970 |
| Δημιουργός≠ | Laird & Ware | Karl Jöreskog (LISREL framework, 1970s) |
| Τύπος≠ | Mixed effects regression | Latent variable / causal modeling |
| Θεμελιώδης πηγή≠ | Laird, N. M., & Ware, J. H. (1982). Random-effects models for longitudinal data. Biometrics, 38(4), 963–974. DOI ↗ | Hair, J. F., Black, W. C., Babin, B. J. & Anderson, R. E. (2019). Multivariate Data Analysis (8th ed.). Cengage Learning. ISBN: 978-1473756540 |
| Εναλλακτικές ονομασίες | LME, LMM, mixed model, random effects model | Yapısal Eşitlik Modellemesi (SEM), structural equation modelling, covariance structure analysis, latent variable modeling |
| Συναφείς≠ | 4 | 5 |
| Σύνοψη≠ | A mixed effects model (or linear mixed model) extends ordinary regression by including both fixed effects — population-level parameters shared by all observations — and random effects that capture subject-, group-, or cluster-level variability. It is the standard tool for repeated-measures, longitudinal, and multilevel data where observations within the same unit are correlated. | Structural equation modeling is a multivariate statistical framework that simultaneously estimates a measurement model — relating observed indicators to latent constructs — and a structural model specifying directional or reciprocal relationships among those constructs. Rooted in the LISREL tradition developed by Karl Jöreskog in the 1970s, SEM is the standard tool for testing complex theoretical models in the social, behavioural, and management sciences. |
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