A Study's Hypothesis That a New Surgical Approach Produces Safer

question 27

Multiple Choice

A study's hypothesis that a new surgical approach produces safer outcomes in immunosuppressed patients is tested in a 14-site research study across the United States. Subjects at all sites are randomly selected and randomly assigned to experimental versus control groups. What strategy is used in this research project?

• A)Quasi-experimental design
• B)Randomized-controlled trial
• C)Model testing design
• D)Counterbalancing

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