方法证据记录
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.
源记录
引文逐字复制自方法源记录。这些引文不代表任何层级的验证。
Scott's Pi Intercoder Reliability Coefficient
分类方法记录 · process-pipeline / communication
- 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
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