Research
Repeating a study with new data to check whether a finding holds — distinct from reproducibility (re-running the same analysis on the same data).
The distinction this entry makes is the one the US National Academies fixed in Reproducibility and Replicability in Science (2019). Reproducibility is “obtaining consistent computational results using the same input data, computational steps, methods, code, and conditions of analysis”. Replicability is “obtaining consistent results across studies aimed at answering the same scientific question, each of which has obtained its own data”. The dividing line is new data. Worth knowing because disciplines have historically used the two words the other way round, so a paper’s usage should be checked rather than assumed.
This entry is sourced to a body with standing over the practice it names, which is tier 1 of this lexicon’s rule for research terms. Where a definition is quoted, it is the body’s own wording; the reading of what it implies is this lexicon’s.
From the AJG lexicon archive (July 2026).
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