WGU D514 OBJECTIVE ASSESSMENT FINAL Exam study guide
COMPLETE EXAM Questions and Answers (Verified Answers)
(Latest Update 2026) UPDATE!!
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 - (ANSWERS)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 - (ANSWERS)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
, WGU D514 OBJECTIVE ASSESSMENT FINAL Exam study guide
COMPLETE EXAM Questions and Answers (Verified Answers)
(Latest Update 2026) UPDATE!!
Cross-Sectional
Pretest-posttest
Randomized Control Trial - (ANSWERS)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 - (ANSWERS)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 - (ANSWERS)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 - (ANSWERS)Cross-sectional
, WGU D514 OBJECTIVE ASSESSMENT FINAL Exam study guide
COMPLETE EXAM Questions and Answers (Verified Answers)
(Latest Update 2026) UPDATE!!
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 - (ANSWERS)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 - (ANSWERS)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 - (ANSWERS)Regression analysis
COMPLETE EXAM Questions and Answers (Verified Answers)
(Latest Update 2026) UPDATE!!
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 - (ANSWERS)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 - (ANSWERS)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
, WGU D514 OBJECTIVE ASSESSMENT FINAL Exam study guide
COMPLETE EXAM Questions and Answers (Verified Answers)
(Latest Update 2026) UPDATE!!
Cross-Sectional
Pretest-posttest
Randomized Control Trial - (ANSWERS)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 - (ANSWERS)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 - (ANSWERS)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 - (ANSWERS)Cross-sectional
, WGU D514 OBJECTIVE ASSESSMENT FINAL Exam study guide
COMPLETE EXAM Questions and Answers (Verified Answers)
(Latest Update 2026) UPDATE!!
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 - (ANSWERS)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 - (ANSWERS)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 - (ANSWERS)Regression analysis
