PCN 540-0500 Module 6 DQ 1

PCN 540-0500 Module 6 DQ 1

PCN 540-0500 Module 6 DQ 1

Early research in an area of clinical treatment tends to include single case study reports, observational studies, or studies of treatment without any comparison groups. What are advantages of moving to experimental designs to evaluate a treatment? What might be some difficulties in following rules for proper/valid experimental designs when evaluating a type of clinical treatment? Be specific in your answers and give examples.
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