Certified Professional in Patient Safety (CPPS) Practice Exam

What type of chart would best illustrate the impact of a "No Pass Zone" initiative over time?

1. Run Chart

2. Control Chart

3. Pareto Chart

4. Shewhart Chart

The correct answer is: Run Chart

The best choice to illustrate the impact of a "No Pass Zone" initiative over time is a run chart. A run chart is effective for displaying data points over a period and helps to visualize trends, patterns, or shifts in performance following an intervention. In the context of the "No Pass Zone," the run chart would allow organizations to record and track specific performance metrics, such as response times to patient needs, before and after the implementation of the initiative. Observing data over time can reveal whether the initiative has led to an improvement in patient care and safety, showing fluctuations in the collected data points and allowing for ongoing monitoring. While a control chart could also show changes over time and highlight variations within a process, it is primarily used when assessing the stability of processes over time, and often requires a more strict adherence to statistical control principles. Conversely, a Pareto chart primarily focuses on identifying the most significant factors in a dataset rather than tracking changes over time. The Shewhart chart, which is another term for a control chart, similarly focuses on process control rather than temporal trends. Therefore, a run chart is the most suited for illustrating the impact over time of the "No Pass Zone" initiative as it effectively captures the continuous nature of patient safety