The researcher asks questions in person. This is known as?

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E6 NursingResearch Sukhpal Kaur p. 278-280
E6 NursingResearch Suresh Sharma 5e Part 2 p. 2-4
Practise the full UPUMS Nsg officer-2023
Attempt every question from this paper in a timed mock, then review the full solution for each one.