Rigorous secondary research from existing data.
JMNS supports responsible reuse of existing human research datasets when the new work asks a substantive question, respects repository terms and reports provenance and analytical decisions transparently.
Existing data can support genuinely original research.
Secondary-data research is judged by the importance and originality of the research question, methodological rigor, analysis and interpretation—not by whether the data were newly collected. Authors should distinguish the new contribution from analyses already reported from the same dataset.
Verify the exact data and the exact terms.
Show exactly how the secondary sample was created.
Report the source cohort, inclusion and exclusion of records, variable selection, preprocessing, transformations, missingness, repeated observations and any differences between the original study sample and the data actually available for reuse. Cite the dataset itself and associated publications or documentation when required or scientifically relevant.
When custom code or workflows materially support the analysis, preserve and share them whenever ethically, legally and technically feasible. Derived data may be shared only when permitted by the governing source terms.
Curated does not mean exhaustive.
The JMNS Verified Dataset Library is intentionally curated. If it does not contain the dataset needed for a research question, researchers should continue searching appropriate specialist resources and trusted repositories.
The Datasets page also provides links to specialist movement, biomechanics, physiological and neuroscience resources. JMNS Data Discovery is not a substitute for an exhaustive repository search when the research question requires one.
JMNS helps with discovery; the repository governs the data.
The authoritative repository or data provider controls current files, versions, licences, access procedures and reuse conditions. JMNS verification does not grant permission to use a dataset and does not override repository terms.
Use of a JMNS-listed dataset creates no publication-venue restriction. Researchers may publish appropriate secondary work in JMNS or another journal, subject to the authoritative dataset terms.