WGU D514 OBJECTIVE ASSESSMENT FINAL Exam study guide COMPLETE
EXAM Questions and Answers (Verified Answers) (Latest Update 2025) U
DATE!!
1. The quality improvement team is reviewing quarterly Time-series
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 continu-
ous reduction in medical errors for each quarter.The
sample consists of patient clinical and demograph-
ic 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
2. A hospital researcher has access to one year of hos- Cross Sectional
pital emergency department claims data. The re-
searcher is investigating the association of race on
the timeliness of delivery of care. The sample includes
information on patient demographics, insurance in-
formation, and emergency department factors. Due
to patient confidentiality, the sample does not include
patient clinical information and outcomes.Which re-
search method should be used?
Time-Series
Cross-Sectional
Pretest-posttest
Randomized Control Trial
3. A policy analyst is interested in determining if the Time-Series
prospective payment system (PPS) has improved hos-
, WGU D514 OBJECTIVE ASSESSMENT FINAL Exam study guide COMPLETE
EXAM Questions and Answers (Verified Answers) (Latest Update 2025) U
DATE!!
pital 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 mea-
sures of efficiency and other relevant control vari-
ables. The analyst hypothesizes that hospital efficien-
cy should have increased each year after the PPS was
implemented.Which research method should the an-
alyst use?
Time-Series
Cross-Sectional
Pretest-posttest
Randomized Control Trial
4. Which type of data analysis could be used in quantita- Reporting the distribution
tive research? of results or outcomes
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
5. What is a characteristic of qualitative research meth- Introduces subjectivity to
ods? data collection
Utilizes large sample sizes
Determines causal relationships
Generalizes results to the population
Introduces subjectivity to data collection
6. Many physician practices now utilize an electronic Cross-sectional
health record (EHR) system that includes a secure
, WGU D514 OBJECTIVE ASSESSMENT FINAL Exam study guide COMPLETE
EXAM Questions and Answers (Verified Answers) (Latest Update 2025) U
DATE!!
messaging feature. Some of these practices have ex-
tended their contact with patients by conducting virtu-
al visits between people with diabetes and nurses who
are certified diabetes educators. The remote technol-
ogy includes the ability to monitor blood glucose data
to determine if these values are within goal range. Af-
ter 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
7. A researcher wants to determine whether continuity Meta-analysis
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 re-
search method is being used?
Case study
Cohort study
Meta-analysis
Literature review
8. The state public health researcher wants to begin a Pre/post-study
five-year initiative to coordinate immunizations for
children in the foster care system. The results will be
compared to previous years to measure the effective-
, WGU D514 OBJECTIVE ASSESSMENT FINAL Exam study guide COMPLETE
EXAM Questions and Answers (Verified Answers) (Latest Update 2025) U
DATE!!
ness of the initiative.Which research method should
be used to study this initiative?
Case study
Cohort study
Longitudinal study
Pre/post-study
9. Using publicly reported data from Centers for Regression analysis
Medicare & Medicaid Services, researchers want to ex-
amine 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
10. Researchers want to determine if a particular risk fac- Regression analysis
tor 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/ethnic-
ity, and insurance status.Which statistical technique
should be used?
Mann-Whitney U test
Bayesian approach
EXAM Questions and Answers (Verified Answers) (Latest Update 2025) U
DATE!!
1. The quality improvement team is reviewing quarterly Time-series
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 continu-
ous reduction in medical errors for each quarter.The
sample consists of patient clinical and demograph-
ic 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
2. A hospital researcher has access to one year of hos- Cross Sectional
pital emergency department claims data. The re-
searcher is investigating the association of race on
the timeliness of delivery of care. The sample includes
information on patient demographics, insurance in-
formation, and emergency department factors. Due
to patient confidentiality, the sample does not include
patient clinical information and outcomes.Which re-
search method should be used?
Time-Series
Cross-Sectional
Pretest-posttest
Randomized Control Trial
3. A policy analyst is interested in determining if the Time-Series
prospective payment system (PPS) has improved hos-
, WGU D514 OBJECTIVE ASSESSMENT FINAL Exam study guide COMPLETE
EXAM Questions and Answers (Verified Answers) (Latest Update 2025) U
DATE!!
pital 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 mea-
sures of efficiency and other relevant control vari-
ables. The analyst hypothesizes that hospital efficien-
cy should have increased each year after the PPS was
implemented.Which research method should the an-
alyst use?
Time-Series
Cross-Sectional
Pretest-posttest
Randomized Control Trial
4. Which type of data analysis could be used in quantita- Reporting the distribution
tive research? of results or outcomes
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
5. What is a characteristic of qualitative research meth- Introduces subjectivity to
ods? data collection
Utilizes large sample sizes
Determines causal relationships
Generalizes results to the population
Introduces subjectivity to data collection
6. Many physician practices now utilize an electronic Cross-sectional
health record (EHR) system that includes a secure
, WGU D514 OBJECTIVE ASSESSMENT FINAL Exam study guide COMPLETE
EXAM Questions and Answers (Verified Answers) (Latest Update 2025) U
DATE!!
messaging feature. Some of these practices have ex-
tended their contact with patients by conducting virtu-
al visits between people with diabetes and nurses who
are certified diabetes educators. The remote technol-
ogy includes the ability to monitor blood glucose data
to determine if these values are within goal range. Af-
ter 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
7. A researcher wants to determine whether continuity Meta-analysis
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 re-
search method is being used?
Case study
Cohort study
Meta-analysis
Literature review
8. The state public health researcher wants to begin a Pre/post-study
five-year initiative to coordinate immunizations for
children in the foster care system. The results will be
compared to previous years to measure the effective-
, WGU D514 OBJECTIVE ASSESSMENT FINAL Exam study guide COMPLETE
EXAM Questions and Answers (Verified Answers) (Latest Update 2025) U
DATE!!
ness of the initiative.Which research method should
be used to study this initiative?
Case study
Cohort study
Longitudinal study
Pre/post-study
9. Using publicly reported data from Centers for Regression analysis
Medicare & Medicaid Services, researchers want to ex-
amine 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
10. Researchers want to determine if a particular risk fac- Regression analysis
tor 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/ethnic-
ity, and insurance status.Which statistical technique
should be used?
Mann-Whitney U test
Bayesian approach
