CPHQ Health Data Analytics 5

Question 1

A quality team reviews 6 months of door-to-balloon time data and calculates a mean of 68 minutes with a standard deviation of 12 minutes. What is the coefficient of variation (CV)?

Accepted Answer

17.6%

Answer

The CV = (standard deviation / mean) × 100 = (12 / 68) × 100 ≈ 17.6%, expressing variability relative to the mean.

Question 2

Which approach is most appropriate when an analyst wants to examine the relationship between two continuous variables, such as nurse-to-patient ratio and patient fall rate?

Accepted Answer

Scatter diagram with regression line

Answer

A scatter diagram displays the relationship between two continuous variables, and adding a regression line helps quantify the direction and strength of that relationship.

Question 3

In outcomes measurement, 'attribution' refers to:

Accepted Answer

Crediting a patient outcome to a specific provider, team, or facility

Answer

Attribution is the process of linking a patient's outcome to a specific accountable provider, care team, or organization for performance measurement purposes.

Question 4

A healthcare organization is monitoring its 30-day readmission rate over time using a control chart. Upper and lower control limits are set at 3 sigma. A data point falls above the upper control limit. The correct interpretation is:

Accepted Answer

A special cause has likely occurred and requires investigation

Answer

A data point beyond 3-sigma control limits is a signal of special cause variation, indicating something unusual occurred that warrants investigation.

Question 5

Which ICD coding system replaced ICD-9-CM in the United States for inpatient diagnoses and procedures on October 1, 2015?

Accepted Answer

ICD-10-CM/PCS

Answer

ICD-10-CM (diagnosis) and ICD-10-PCS (procedure) replaced ICD-9-CM for all HIPAA-covered entities in the US starting October 1, 2015.

CPHQ - Certified Professional in Healthcare Quality Practice Test

CPHQ - Certified Professional in Healthcare Quality Practice Test

CPHQ Health Data Analytics 5