Performance Improvement and Data Analytics Flashcards

A dashboard shows that ED door-to-physician time improved from 45 minutes to 28 minutes after a process change. To confirm this is a sustained improvement rather than regression, a leader should:

Answer: Continue plotting the metric on a control chart for at least 12–18 data points post-change

Sustained improvement requires ongoing monitoring with a control chart to detect regression before it becomes entrenched.

Which type of benchmark comparison is MOST useful for setting a realistic performance improvement target for a community hospital?

Answer: Peer-group benchmark from similar community hospitals

Peer-group benchmarks from similar organizations account for case mix and resource differences, making targets realistic and actionable.

In predictive analytics, overfitting a model means:

Answer: The model performs well on training data but poorly on new, unseen data

Overfitting occurs when a model learns noise in training data rather than true patterns, causing poor generalization to new data.

A healthcare leader wants to understand whether longer nursing shift lengths are associated with higher patient fall rates. The MOST appropriate analytic method is:

Answer: Correlation analysis between shift length and fall rate across units

Correlation analysis quantifies the strength and direction of the relationship between two continuous variables across multiple observations.

When using the Model for Improvement, what is the purpose of a 'small test of change' (PDSA cycle)?

Answer: To learn rapidly whether a change leads to improvement with minimal risk

Small PDSA cycles test changes in a limited context to generate learning quickly while reducing the risk of widespread harm if the change fails.

Which measure type captures the end result experienced by the patient, such as functional status at discharge?

Answer: Outcome measure

Outcome measures reflect the actual results of care experienced by patients, such as clinical status, function, or quality of life.

A performance improvement team discovers that 80% of medication errors originate from 3 of the 20 identified root causes. This finding reflects:

Answer: The Pareto principle, suggesting focused effort on those 3 causes

The Pareto principle (80/20 rule) indicates that a minority of causes drive the majority of defects, guiding teams to prioritize high-impact interventions.