Title: rules of practical causal inference Long Title: IUPAC Gold Book - rules of practical causal inference DOI: 10.1351/goldbook.15006 Status: current Definition Fox’s rules of practical causal inference that are used in ecotoxicology (environmental epidemiology) to infer causality for toxicant exposure/effect scenarios. Note The rules apply the following criteria for objectively evaluating the relationship between a suspect cause and a chronic effect: (1) probability, (2) time order, (3) strength of association, (4) specificity, (5) consistency on replication, (6) predictive performance, and (7) coherence. Source - PAC, 2009, 81, 829. 'Glossary of terms used in ecotoxicology (IUPAC Recommendations 2009)' on page 941 (https://doi.org/10.1351/PAC-REC-08-07-09) Other Outputs - html: https://goldbook.iupac.org/terms/view/15006/html - json: https://goldbook.iupac.org/terms/view/15006/json - xml: https://goldbook.iupac.org/terms/view/15006/xml Citation: Citation: 'rules of practical causal inference' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. 10.1351/goldbook.15006 License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International (https://creativecommons.org/licenses/by-sa/4.0/) for individual terms. Collection: If you are interested in licensing the Gold Book for commercial use, please contact the IUPAC Executive Director at executivedirector@iupac.org . Disclaimer: The International Union of Pure and Applied Chemistry (IUPAC) is continuously reviewing and, where needed, updating terms in the Compendium of Chemical Terminology (the IUPAC Gold Book). Users of these terms are encouraged to include the version of a term with its use and to check regularly for updates to term definitions that you are using. Accessed: 2026-04-19T01:31:08+00:00