Research / PUBLIC-SAFE SUMMARY

Anonymous participant setup

Implemented; permissions are operator confirmations

The app generates a sequential anonymous ID. It records exact age, sex, weekly activity category, height, weight and assigned order. Participant names are not a research field.

Sex options include female, male, another sex variation and prefer not to answer. Activity categories are less than one hour, about one to four hours, and more than four hours of moderate/vigorous activity per week.

Height entry supports feet/inches or centimetres; weight supports pounds or kilograms. Stored values are normalized to centimetres and kilograms.

Consent is age-specific: adults provide informed consent; minors require guardian permission and their own assent. Eligibility and adult supervision are confirmed per session.

Supporting workspace artifacts

Source locations identify the original artifacts in the private project. Raw files are not publicly served. Hashes identify the reviewed source snapshot; they are provenance, not external certification.

• docs/study-plan.md:504SHA-256 8917413b5ba1bc1666646352b3cd73c7f9a294e707ed0d1bfeab3c9c17826038
• App/Shared/Domain/Participant.swift:45SHA-256 f597006a08fa0a73b24f1654111784d1e54ffdd73a9b6fa1afe6f9f05da0bece