During the Plan-Do-Study-Act (PDSA) cycle, which stage involves analyzing pre-test data?

• A. Plan
• B. Do
• C. Study
• D. Act

Answer: (C)

In the Plan-Do-Study-Act cycle, the step where you examine the data gathered and see how outcomes compare with what you predicted is the Study phase. This is where you analyze results, including baseline or pre-test data, to determine whether the change achieved the expected improvement. By studying the data, you decide what happened, whether the plan worked, and what to adjust next. Plan sets up what will be measured and how; Do carries out the change and collects data; Act uses what you learned to modify the plan or adopt the change. So analyzing pre-test data to understand the starting point and the impact of the intervention happens during Study.