WGU D514 OBJECTIVE ASSESSMENT FINAL/WGU
D514 ANALYTICAL METHODS OF HEALTHCARE
LEADERS OA EXAM NEWEST 2025 ACTUAL
EXAM TEST BANK 200 QUESTIONS AND
CORRECT DETAILED ANSWERS (VERIFIED
ANSWERS) |ALREADY GRADED A+
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 - ✔✔ANSW✔✔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 - ✔✔ANSW✔✔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 - ✔✔ANSW✔✔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 -
✔✔ANSW✔✔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 -
✔✔ANSW✔✔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?
Time-series
Clinical trial
Pretest-posttest
Cross-sectional - ✔✔ANSW✔✔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?
Case study
Cohort study
Meta-analysis
Literature review - ✔✔ANSW✔✔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?
Case study
Cohort study
Longitudinal study
Pre/post-study - ✔✔ANSW✔✔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?
t-test
Analysis of variance
Regression analysis
Pearson product-moment correlation coefficient -
✔✔ANSW✔✔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
D514 ANALYTICAL METHODS OF HEALTHCARE
LEADERS OA EXAM NEWEST 2025 ACTUAL
EXAM TEST BANK 200 QUESTIONS AND
CORRECT DETAILED ANSWERS (VERIFIED
ANSWERS) |ALREADY GRADED A+
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 - ✔✔ANSW✔✔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 - ✔✔ANSW✔✔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 - ✔✔ANSW✔✔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 -
✔✔ANSW✔✔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 -
✔✔ANSW✔✔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?
Time-series
Clinical trial
Pretest-posttest
Cross-sectional - ✔✔ANSW✔✔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?
Case study
Cohort study
Meta-analysis
Literature review - ✔✔ANSW✔✔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?
Case study
Cohort study
Longitudinal study
Pre/post-study - ✔✔ANSW✔✔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?
t-test
Analysis of variance
Regression analysis
Pearson product-moment correlation coefficient -
✔✔ANSW✔✔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
