Historical research has the following characteristics, except?

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E6 NursingResearch Suresh Sharma 5e Part 1 pp. 211-213, 212-214
E6 NursingResearch Sukhpal Kaur p. 228-230
Practise the full IGNOU Post B. SC. Nursing entrance-2019
Attempt every question from this paper in a timed mock, then review the full solution for each one.