Which combination of practices helps ensure data privacy when collecting participant inputs?

• A. Anonymize responses
• B. Limit data collection to necessary fields
• C. All of the above
• D. Secure storage

Answer: (C)

Protecting participant privacy relies on reducing identifiability, limiting data exposure, and guarding stored data. Anonymizing responses removes identifiers so outputs can’t be linked to individuals. Limiting data collection to what’s truly necessary minimizes the amount of information that could be exposed or misused. Secure storage protects data at rest from unauthorized access, breaches, or leaks. Together, these practices cover different angles of privacy: who could be identified, how much data is kept, and how safely that data is stored. Relying on all of them provides a more robust privacy shield than any single measure alone.