The Outpatient Coding Staff Has Been Working to Improve Coding

The outpatient coding staff has been working to improve coding accuracy. The standard for the number of cases that must be coded has been raised four times in the past year. The staff states that "the more cases that must be coded, the greater the error rate will be for the corresponding time period." The department keeps statistics on both the numbers of cases coded and the corresponding error rate. What is the best QI tool for testing the coding staff's theory?

A) control chart
B) Pareto chart
C) run chart
D) scatter diagram

Correct Answer:

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