WGU D514 OA WGU D514 ACTUAL EXAM CURRENTLY
TESTING COMPLETE EXAM QUESTIONS WITH DETAILED
VERIFIED ANSWERS (100% CORRECT ANSWERS)
ALREADY GRADED A+ BRAND NEW!! 2025/2026
The 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?
Time-Series
Cross-Sectional
Pretest-posttest
Randomized Control Trial - 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?
Time-Series
Cross-Sectional
Pretest-posttest
Randomized Control Trial - 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.Which research method should the analyst use?
Time-Series
Cross-Sectional
Pretest-posttest
Randomized Control Trial - Answer-Time-Series
Which type of data analysis could be used in quantitative research?
Reporting the gender of participants
Ranking the severity order with 1 as the worst and 4 as the best
Reporting the distribution of results or outcomes
Using categorical variables with 0=no and 1=yes - Answer-Reporting the
distribution of results or outcomes
What is a characteristic of qualitative research methods?
Utilizes large sample sizes
Determines causal relationships
Generalizes results to the population
Introduces subjectivity to data collection - 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
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?
t-test
Analysis of variance
Regression analysis
Pearson product-moment correlation coefficient - 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?
Mann-Whitney U test
Bayesian approach
Regression analysis
Wilcoxon signed-rank test - Answer-Regression analysis
TESTING COMPLETE EXAM QUESTIONS WITH DETAILED
VERIFIED ANSWERS (100% CORRECT ANSWERS)
ALREADY GRADED A+ BRAND NEW!! 2025/2026
The 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?
Time-Series
Cross-Sectional
Pretest-posttest
Randomized Control Trial - 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?
Time-Series
Cross-Sectional
Pretest-posttest
Randomized Control Trial - 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.Which research method should the analyst use?
Time-Series
Cross-Sectional
Pretest-posttest
Randomized Control Trial - Answer-Time-Series
Which type of data analysis could be used in quantitative research?
Reporting the gender of participants
Ranking the severity order with 1 as the worst and 4 as the best
Reporting the distribution of results or outcomes
Using categorical variables with 0=no and 1=yes - Answer-Reporting the
distribution of results or outcomes
What is a characteristic of qualitative research methods?
Utilizes large sample sizes
Determines causal relationships
Generalizes results to the population
Introduces subjectivity to data collection - 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
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?
t-test
Analysis of variance
Regression analysis
Pearson product-moment correlation coefficient - 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?
Mann-Whitney U test
Bayesian approach
Regression analysis
Wilcoxon signed-rank test - Answer-Regression analysis
