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	Badania panelowe wielowymiarowe	Badania podłużne
Dziedzina	Projektowanie badań	Projektowanie badań
Rodzina	Process / pipeline	Process / pipeline
Rok powstania	1960s–1980s (econometrics); broader social-science uptake 1990s–2000s	Late 19th–early 20th century; methodologically codified through the 20th century
Twórca	Econometric tradition; formalized by Cheng Hsiao and Badi Baltagi	No single originator; foundational methodological treatments by Stuart Menard and Judith Singer & John Willett
Typ	Quantitative panel research design	Quantitative (or mixed) observational research design
Źródło pierwotne	Hsiao, C. (2003). Analysis of Panel Data (2nd ed.). Cambridge University Press. ISBN: 978-0521522717	Menard, S. (2002). Longitudinal Research (2nd ed.). Sage Publications. ISBN: 978-0761922841
Inne nazwy	multivariate panel data analysis, panel data multivariate modeling, multi-outcome panel study, longitudinal multivariate panel design	longitudinal study, longitudinal design, prospective longitudinal study, repeated-measures observational study
Pokrewne	5	4
Podsumowanie	Multivariate panel research combines the repeated-measurement structure of panel data — the same subjects observed at multiple time points — with the simultaneous analysis of two or more outcome or predictor variables. By modeling joint trajectories across units and time, it controls for unobserved individual heterogeneity while capturing the interplay among variables, making it one of the most powerful non-experimental designs available for causal and predictive inference in the social, behavioral, and economic sciences.	Longitudinal research is an observational design in which the same participants, groups, or units are measured repeatedly over an extended period. Rather than capturing a single snapshot, it tracks change, stability, and temporal sequencing of variables — making it the primary non-experimental strategy for studying development, growth, decline, and the unfolding of causal processes across time.