Under what conditions may properly trained personnel perform QA duties as well as technical ones?

• A. If one person has had any QA responsibility for a particular study, they cannot later work on raw data, the study file, or the reporting procedures
• B. QA duties can always be performed by the same person who handles data reporting
• C. QA duties must always be performed by separate personnel from technical work
• D. There are no conditions; QA and technical duties must never be combined

Answer: (A)

Independence of QA from data generation and reporting is essential. To keep QA objective and protect data integrity, the person overseeing QA for a study should not later work on the study’s raw data, the study file, or the reporting procedures. If someone has had QA responsibility for a study, they must avoid those technical tasks for that same study to prevent conflicts of interest and potential bias in QA findings. Properly trained personnel can perform QA duties, but the key condition is maintaining separation from the technical work for the same study. This separation preserves the integrity and credibility of the QA process and the study’s results.