Process / pipelineIntercoder reliability coefficients
Scott's Pi
Scott's pi is a chance-corrected coefficient of intercoder agreement for two coders working on a nominal scale, introduced by William Scott in 1955 specifically for content analysis. It improves on raw percent agreement by subtracting the agreement two coders would reach by chance, where chance is estimated from a single pooled distribution of categories shared by both coders rather than from each coder's separate marginals.
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来源
- Scott, W. A. (1955). Reliability of content analysis: The case of nominal scale coding. Public Opinion Quarterly, 19(3), 321–325. DOI: 10.1086/266577 ↗
- Cohen, J. (1960). A coefficient of agreement for nominal scales. Educational and Psychological Measurement, 20(1), 37–46. DOI: 10.1177/001316446002000104 ↗
- Krippendorff, K. (2004). Content Analysis: An Introduction to Its Methodology (2nd ed.). Thousand Oaks, CA: Sage. ISBN: 9780761915454
如何引用本页
ScholarGate. (2026, June 22). Scott's Pi Intercoder Reliability Coefficient. ScholarGate. https://scholargate.app/zh/communication/scott-pi-reliability
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将本方法与其最相近的同类并置，并排研读——本馆将书籍铺陈于案上，取舍则由您定夺。
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- Manifest Content AnalysisCommunication↔ 比较