Method evidence record

Krippendorff's Alpha

Krippendorff's alpha is a chance-corrected coefficient that quantifies the reliability of coding decisions made by two or more observers, and is the standard reliability statistic in communication content analysis. Unlike percent agreement, it corrects for the agreement expected by chance; unlike Cohen's kappa, it generalizes seamlessly to any number of coders, any measurement level (nominal, ordinal, interval, ratio), and data sets with missing values.

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Krippendorff's Alpha Reliability Coefficient

Taxonomic method record · process-pipeline / communication

Hayes, A. F., & Krippendorff, K. (2007). Answering the call for a standard reliability measure for coding data. Communication Methods and Measures, 1(1), 77–89. · DOI 10.1080/19312450709336664
Krippendorff, K. (2004). Content Analysis: An Introduction to Its Methodology (2nd ed.). Thousand Oaks, CA: Sage. · ISBN 9780761915454
Cohen, J. (1960). A coefficient of agreement for nominal scales. Educational and Psychological Measurement, 20(1), 37–46. · DOI 10.1177/001316446002000104

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Related methods

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Same method familyContent Analysismachine-suggested · Relational suggestion, not evidence.Same method familyFraming Analysismachine-suggested · Relational suggestion, not evidence.Same method familyIntercoder Reliabilitymachine-suggested · Relational suggestion, not evidence.Same method familyManifest Content Analysismachine-suggested · Relational suggestion, not evidence.