The evidence that underpins the answer to the research question

 - UK Concordat on Open Research Data (2016)

Recorded factual material commonly retained by and accepted in the scientific community as necessary to validate research findings.

 - EPSRC Policy Framework on Research Data

Data that are used as primary sources to support technical or scientific enquiry, research, scholarship, or artistic activity, and that are used as evidence in the research process and/or are commonly accepted in the research community as necessary to validate research findings and results. All other digital and non-digital content have the potential of becoming research data. Research data may be experimental data, observational data, operational data, third party data, public sector data, monitoring data, processed data, or repurposed data.

- CASRAI Dictionary