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	Badania panelowe nad trendami	Badanie podłużne	Jednoczynnikowa ANOVA z powtarzanymi pomiarami
Dziedzina	Projektowanie badań	Metodologia badań sondażowych	Statystyka
Rodzina	Process / pipeline	Process / pipeline	Hypothesis test
Rok powstania	1940s–1960s	1940s (panel survey tradition); longitudinal designs codified mid-20th century	1992
Twórca	Established through survey methodology and panel econometrics; foundational contributions by Paul Lazarsfeld (1940s) and later systematized by econometricians including Zvi Griliches and Yair Mundlak	Established tradition; formalized in social science by Paul Lazarsfeld and colleagues (1940s panel studies)	Girden (textbook treatment); Field (2013)
Typ	Quantitative longitudinal observational design	Quantitative / mixed-methods survey design	Parametric within-subjects mean comparison
Źródło pierwotne	Menard, S. (2002). Longitudinal Research (2nd ed.). Sage Publications. ISBN: 978-0761922452	Menard, S. (2002). Longitudinal Research (2nd ed.). Sage Publications. ISBN: 978-0761922292	Field, A. (2013). Discovering Statistics Using IBM SPSS Statistics (4th ed., Ch. 14). SAGE. ISBN: 978-1446249185
Inne nazwy	panel trend study, longitudinal panel design, repeated-measures panel survey, panel survey trend analysis	panel survey, repeated-measures survey, longitudinal panel study, wave survey	within-subjects ANOVA, repeated measures analysis of variance, rm-ANOVA, Tekrarlı Ölçüm ANOVA
Pokrewne	3	3	4
Podsumowanie	Panel-based trend research tracks the same group of respondents — the panel — across multiple measurement waves over time, enabling researchers to separate genuine individual-level change from cohort differences and to model how variables evolve within persons. Unlike repeated cross-sectional designs, which sample new participants at each wave, a panel design retains the same units, giving it the power to detect within-person trajectories and causal ordering among variables.	A longitudinal survey collects structured questionnaire data from the same individuals or units at two or more distinct points in time. By tracking the same respondents across waves, researchers can distinguish genuine change from stable individual differences, establish temporal ordering between variables, and model trajectories of attitudes, behaviors, or outcomes in ways that a single cross-sectional snapshot cannot support.	Repeated-measures ANOVA is a parametric hypothesis test that compares three or more measurements taken from the same individuals — typically across time points or conditions — to decide whether their means differ. It extends one-way ANOVA to within-subjects designs, as treated in standard references such as Girden (1992) and Field (2013).