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WGU D514 Exam 46 Questions with Verified Answers,100% CORRECT
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WGU D514 Exam 46 Questions with Verified Answers
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WGU D514 Exam 46 Questions with Verified AnswersThe quality improvement team is reviewing quarterly incident reports and
evaluating the effect of Six Sigma strategies on the quantity of medication errors
over the past two years. The team hypothesizes a continuous reduction in medical
errors for each quarter.The sample consists of patient clinical and demographic
characteristics. Unfortunately, causation cannot be determined from the data
available.Which research method should be used to test the team's hypothesis? -
CORRECT ANSWER Time-Series
A hospital researcher has access to one year of hospital emergency department
claims data. The researcher is investigating the association of race on the
timeliness of delivery of care. The sample includes information on patient
demographics, insurance information, and emergency department factors. Due to
patient confidentiality, the sample does not include patient clinical information
and outcomes.Which research method should be used? - CORRECT ANSWER
Cross-Sectional
A policy analyst is interested in determining if the prospective payment system
(PPS) has improved hospital efficiency over time during the past ten years. The
sample for analysis consists of ten years of data after the introduction of the PPS
and includes measures of efficiency and other relevant control variables. The
analyst hypothesizes that hospital efficiency should have increased each year
after the PPS was implemented. - CORRECT ANSWER Time-Series
Which type of data analysis could be used in quantitative research? - CORRECT
ANSWER Reporting the distribution of results or outcomes
What is a characteristic of qualitative research methods? - CORRECT ANSWER
Introduces subjectivity to data collection.
Many physician practices now utilize an electronic health record (EHR) system
that includes a secure messaging feature. Some of these practices have extended
their contact with patients by conducting virtual visits between people with
diabetes and nurses who are certified diabetes educators. The remote technology
, includes the ability to monitor blood glucose data to determine if these values are
within goal range. After six months, the results of the blood glucose levels for the
group participating in the virtual visits were evaluated. Which research method
was used? - CORRECT ANSWER Cross-sectional
A researcher wants to determine whether continuity of care is improved with the
use of coordination of care documents among primary care physicians and
specialists. The researcher decides to review various published studies to assess
the clinical effectiveness of these documents on patient outcomes. Which
research method is being used? - CORRECT ANSWER Meta-analysis
The state public health researcher wants to begin a five-year initiative to
coordinate immunizations for children in the foster care system. The results will
be compared to previous years to measure the effectiveness of the initiative.
Which research method should be used to study this initiative? - CORRECT
ANSWER pre/post study
Using publicly reported data from Centers for Medicare & Medicaid Services,
researchers want to examine the relationship between 30-day readmissions and
mortality rates for patients with heart failure at five facilities. Before this can be
done, researchers need to estimate mortality rates and readmission rates from
heart failure. Which statistical technique should be used to calculate the
estimated rates? - CORRECT ANSWER Regression analysis
Researchers want to determine if a particular risk factor or risk factors are
associated with the frequency for nonelective readmission within 30 days among
patients with diabetes in a metropolitan area. The variables of interest include
age, gender, race/ethnicity, and insurance status. Which statistical technique
should be used? - CORRECT ANSWER Regression analysis
Suggested Study Review
A hospital researcher is interested in investigating the association between
hospital ownership (i.e., government, investor, and not-for-profit) on overall
hospital quality scores. A cross-sectional data set of all urban hospitals from eight
states is used in this study. The data were obtained from various administrative
databases: Medicare Hospital Cost Report Information System, the American
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