Health Data Analytics Flashcards
7 cards from real CPHQ practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Health Data Analytics flashcards as text
A quality analyst calculates the 99% confidence interval for a hospital's mortality rate. What does this interval represent?
Answer: There is a 99% probability the true population rate falls within this interval
A 99% confidence interval means that if the same study were repeated many times, 99% of the computed intervals would contain the true population parameter.
Which data type is represented by patient satisfaction scores measured on a 1-to-5 Likert scale?
Answer: Ordinal
Likert scale data is ordinal because the categories have a meaningful rank order, but the intervals between values are not necessarily equal.
A hospital's sepsis bundle compliance rate has been at 72% for 8 months with no discernible trend. According to statistical process control theory, this represents:
Answer: Common cause variation reflecting the natural capability of the current process
A stable process oscillating around a consistent average without signals reflects common cause variation, meaning only fundamental process redesign will shift the average.
In healthcare data warehousing, what is the function of an ETL process?
Answer: Extract, Transform, and Load data from source systems into a warehouse
ETL (Extract, Transform, Load) is the process of pulling data from source systems, converting it to a standardized format, and loading it into a data warehouse.
A quality team wants to determine if there is a statistically significant association between nursing unit and hospital-acquired infection rates. Which statistical test is most appropriate?
Answer: Chi-square test of independence
The chi-square test of independence is used to determine whether there is a significant association between two categorical variables such as nursing unit and infection occurrence.
Which of the following BEST describes a 'composite measure' in healthcare quality reporting?
Answer: A single summary score combining multiple individual measures into one overall rating
A composite measure combines the results of several individual measures into a single overall score to provide a summary assessment of care quality.
When a quality analyst observes that a hospital's observed-to-expected (O/E) mortality ratio is 0.78, this means:
Answer: The hospital's mortality rate is 78% of what would be expected given its patient population
An O/E ratio of 0.78 means the hospital experienced only 78% of the deaths expected based on its risk-adjusted patient population, indicating better-than-expected performance.