When can research data be used for non-research purposes?

Using research data for non-research purposes is appropriate when participants have given their consent for broader usage. This consent process is crucial as it respects the autonomy of the participants and their rights to control how their data is utilized. Ethical research guidelines emphasize the importance of informed consent, which involves adequately informing participants about the potential uses of their data and obtaining their agreement for those uses, particularly if they extend beyond the initial study's scope.

Consent ensures that participants are aware of and agree to any additional applications of their data, which is fundamental to maintaining trust and ethical standards within research practices. This situation underscores the principle of respect for persons, a core ethical consideration in research.

The other options do not generally provide the same level of ethical justification for using data beyond research purposes. For example, while fully anonymized data can often be used in various ways, consent remains a primary requirement to ensure ethical adherence. Similarly, the status of study completion or ongoing data collection does not inherently grant permission for non-research use without participant agreement.