1. What is the primary purpose of a randomized controlled trial (RCT) in health care research? A. To test the efficacy of health interventions B. To determine the cost-effectiveness of treatments C. To assess patient satisfaction with care D. To evaluate the side effects of medications Answer: A. The primary purpose of an RCT is to test the efficacy of health interventions by randomly assigning participants to either the intervention group or the control group, thereby minimizing bias. 2. In qualitative research, which method is best suited for exploring the lived experiences of patients with chronic illness? A. Phenomenology B. Grounded theory C. Ethnography D. Case study Answer: A. Phenomenology is best suited for exploring the lived experiences of individuals, as it focuses on understanding the essence and meanings of tho