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All of the following methods of presenting data obscure the time-order of the data EXCEPT
The use of regression analysis to help determine relationships between groups of numbers is most closely associated with which graphic display technique?
You are preparing a report to present to the Public Health Council on the declining rates of gonorrhea in your state in both men and women over the last 10 years. Which type of graph would best illustrate the data??
Which of the following charts is most appropriate for displaying the results of a survey of staff perception of the overall level of customer service (e.g. Excellent/Very Good/Average/Below Average/Poor) provided in a hospital?
You are the quality professional for a large provider organization. You have two sets of monthly utilization data—total costs and total reimbursements from payers—for the last two years. Use this information to answer question:
To best display the data for the full two years, which of the following types of graphic displays should you use?
Which of the following graphs is most appropriate in displaying the root causes of adverse events that have occurred in a hospital system over the past 10 years?
In healthcare quality improvement, common causes, in comparison to special causes, are
Which is the best graphic display to show proportion?
The senior leaders of a hospital are prioritizing performance improvement initiatives for the coming year. Which of the following tools will be most useful for this purpose?
A quality improvement manager must decide how to present data that demonstrates the relationship between two process characteristics. Which of the following data display techniques is most appropriate?
A 700-bed acute care facility receives 40% of its admissions from the emergency department(ED). Quality problems, especially wait time, were expressed by patients, family members, and physicians.
Which tool should the ED team use first in the investigational phase of the improvement process?
Which display is best to help the ambulatory clinic team decide which of 10 reasons for patient dissatisfaction to address this year?
Which tool(s) or measure(s) show summary of characteristics about population?
The relationship between patient satisfaction and hours per patient day on a medical unit was found to be (r= 0.60, p < 0.05). What is the correlation between these two values?
In comparing the percentage of falls with injuries in calendar year 2012 between facilities that use restraints and those that do not, which chart should be used?
The primary care clinic tracks callers’ telephone wait times as a recurring performance measure twice a year. In the last two months, wait times have been increasing. On the latest run chart, 8 consecutive data points all in ascending order, with 21 total data points, represents a/an
A common cause variation is:
Frequency distribution can best be displayed through use of
Which of the following display formats is best used to evaluate the number of ear infections, urinary tract infections, and conjunctivitis experienced by individuals served in a group home?
“Common causes” of problems in processes refer to
Time series plots, compared with control charts, are best used to
The best tool to display stability of nosocomial infection rates over time is a
The monthly rate of resident falls in the past 12 months was plotted on a control chart. All data points are within the control limits but the last data point falls exactly on the upper control limit. The improvement team should conclude that
Special cause variation is to the process:
Which of the following charts is most appropriate in monitoring the number of CT scans performed on members of health plan?
A healthcare quality professional has been asked to provide a report on the rate of Cesarean sections performed at a hospital over the past five years. Which of the following is the best way to present the data?
The upper and lower control limits of a process control chart are three standard deviations from the mean. A data point that falls outside these limits
In the community health clinic, at least four complaints have been received per month for the past four months, compared to an average of one per month for the six prior months. The average number of patients seen per month is 2000. The trigger is >0.2%. What is the appropriate response?
Once statistical control is established, the next step in continuous quality improvement is to
An emergency department tracks wait times from patient arrival to physician assessment. Data is reported using a run chart. Which of the following demonstrates a true statistical increase in treatment delays?
An acute care facility is tracking the monthly rate of ventilator-associated pneumonia in the adult ICU. What is the most sensitive tool for identifying special cause variation?
After aggregating data, it is important to summarize the information
When a case manager wants to demonstrate length of stay data that depicts both common cause and special cause variation, which of the following should be used?
In a 250-bed acute care facility, the length of each admission is measured in days. Which of the following is most appropriate for displaying the data for the past 12 months?
Teaching the use of QI tools is more effective when
Which one of the following is not the description of an analysis tool?
An outpatient clinic is attempting to measure the quality of a newly developed diabetes disease management program. To accomplish this, laboratory results will be measured over time. The best way to display the data is to use a
Which of the following tools is most appropriate for investigating the relationship between two characteristics?
In analyzing data, the healthcare quality professional can minimize the risk of interpreting noise as if it were a signal and minimize the risk of failing to detect a signal when it is present by using a
To interpret performance/productivity reports, you must also understand process variation, which means
To avoid misinterpreting variances, which of the following statistical tools should be used?
Positive correlation appears as:
A sentinel event is regarded as a:
Refer to the following control chart:
In assessing the timeliness for the administration of antibiotics for pneumonia, this control chart demonstrates
Circular shape of data on scatter diagram indicate:
In statistical process control, it is important first to
Prior to plotting a line graph, a healthcare quality professional should FIRST
Of the following, the best way for the Sunset Nursing Home to determine if a nursing staff shortage might be related to an increase in the number of patient falls is to perform a
Analysis of post-operative surgical site infection rates over the past 12 months demonstrates an increase in infections. Which of the following BEST provides a display of aggregated data compared to data from a local facility?
The rate of increase or decrease in total medication errors over a six-month period could best be displayed by the use of a
Measurement and assessment activities by the local Ambulatory Surgery Center indicate that monthly surgical site postoperative infection rates have increased over the past year. A comparison of the local Center’s aggregated rate to the other surgery centers in the same region, for like procedures, is best displayed by the use of a
For variance interpretation the most suitable tool:
Which of the following charts is used to institute quality improvement and monitor cost reduction on an ongoing basis?
Common causes of process variation refer to causes of variation that