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	Panelowa ilościowa analiza treści	Badanie trendów
Dziedzina	Projektowanie badań	Projektowanie badań
Rodzina	Process / pipeline	Process / pipeline
Rok powstania	1950s–1980s (formalized in communication research)	Mid-20th century (formalised in social science methodology ~1950s–1960s)
Twórca	Synthesized from Berelson's content analysis tradition and panel study methodology	Earl Babbie and survey research tradition
Typ	Longitudinal observational design	Quantitative longitudinal research design
Źródło pierwotne	Neuendorf, K. A. (2002). The Content Analysis Guidebook. Sage Publications. ISBN: 978-0761919773	Creswell, J. W. (2014). Research Design: Qualitative, Quantitative, and Mixed Methods Approaches (4th ed.). Sage. ISBN: 978-1452226101
Inne nazwy	longitudinal content analysis, repeated-measures content analysis, panel content analysis, tracking content analysis	trend study, trend survey, longitudinal trend study, time-series survey
Pokrewne	5	4
Podsumowanie	Panel-based quantitative content analysis applies systematic, numeric coding of media or textual content to the same fixed panel of sources at multiple time points. By holding the source panel constant while measurements repeat over time, researchers can track genuine change in content patterns rather than confounding source variation with temporal change. It is widely used in communication, media studies, and political science to monitor how coverage, framing, or topic salience evolves.	Trend research is a longitudinal quantitative design that tracks changes in a characteristic of a general population over time by surveying different, independently drawn samples at two or more time points. Unlike panel studies, the same individuals are not followed; rather, each wave draws a fresh sample from the same population, allowing researchers to detect population-level shifts in attitudes, behaviours, or conditions while avoiding the attrition and panel conditioning problems of repeated-measures designs.