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| Analisi Quantitativa Longitudinale del Contenuto× | Analisi quantitativa del contenuto× | |
|---|---|---|
| Campo | Disegno della ricerca | Disegno della ricerca |
| Famiglia | Process / pipeline | Process / pipeline |
| Anno di origine≠ | 1950s onward; longitudinal application widely adopted in media research by the 1970s–1980s | 1950s (Berelson 1952; Krippendorff 1980/2004) |
| Ideatore≠ | Developed within communication and media studies; codified by Berelson (1952) and extended by Riffe, Lacy, Fico | Bernard Berelson; later systematised by Klaus Krippendorff |
| Tipo≠ | Quantitative observational research design | Quantitative observational research method |
| Fonte seminale≠ | Riffe, D., Lacy, S., Watson, B., & Fico, F. (2019). Analyzing Media Messages: Using Quantitative Content Analysis in Research (4th ed.). Routledge. ISBN: 9781138490536 | Krippendorff, K. (2004). Content Analysis: An Introduction to Its Methodology (2nd ed.). Sage. ISBN: 978-0761915454 |
| Alias | longitudinal content analysis, repeated-measure content analysis, time-series content analysis, longitudinal QCA | QCA, manifest content analysis, systematic content analysis, frequency-based content analysis |
| Correlati≠ | 5 | 4 |
| Sintesi≠ | Longitudinal quantitative content analysis systematically codes and counts features of texts, images, or media messages gathered at two or more points in time, enabling researchers to track how content changes, how themes rise or fall in prevalence, and how media or institutional messaging responds to external events. The design merges the structured measurement logic of quantitative content analysis with the temporal tracking power of longitudinal observation. | Quantitative content analysis is a systematic, replicable method for converting the manifest content of text, images, or other recorded communication into numerical data. By applying a pre-specified codebook to a defined corpus and counting or scaling the resulting categories, researchers obtain frequency distributions, proportions, and relationships that can be subjected to standard statistical tests. It is the dominant method for large-scale, objective analysis of media, documents, social media posts, policy texts, and similar materials. |
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