1 | Page
2025-2026 WGU D514 OBJECTIVE ASSESSMENT FINAL/WGU D514
ANALYTICAL METHODS OF HEALTHCARE LEADERS OA ALL
QUESTIONS AND CORRECT DETAILED ANSWERS | ALREADY A
GRADED
Using publicly reported data from Centers for Medicare & Medicaid Services, researchers wa
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
,2 | Page
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.Research
MethodsA 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 Repor
Information System, the American Hospital Association, and the Area Health Resource File.
Descriptive statistics are used to summarize the data. An ordinary least squares regression is
used to test the relationship between ownership status and hospital quality while controlling f
hospital and market characteristics.Which component is missing from these research methods
Analysis plan
Data collection
Study population
Research design - ANSWER- Research design
Assoc. between pt satisfaction & hospital market share. Researcher hypothesizes that increase
pt satisfaction will lead to increase in hosp. market share. Longitudinal study of 7 years will b
conducted to assess the change in hospital market share over time. Urban hospitals from the
U.S. that have > 100 beds will be included. The data set will include hosp. characteristics and
market characteristics. Admin. data will be obtained from the Am. Hospital Association's
Annual Survey of Hospitals, the Area Health Resources File, and the Hosp. Compare website
The variables included in the data set will control for other factors that may impact hospital p
satisfaction. Stat. significance will be set at α = 0.05 for the analysis. The results of the analys
will be of interest to hospital administrators and policy makers. Which component is missing?
Analysis plan Data collection Study population Research design - ANSWER- Analysis plan
After reviewing a quality report from a large urban hospital, an administrator decided to
implement a new initiative to improve communication among healthcare professionals. The
hospital administrator conducted a survey on safety and error prevention that revealed that
ineffective or insufficient communication among team members is a significant contributing
factor to adverse events.Which source of data would have been used to highlight patient
perception of care?
HCAHPS scores
,3 | Page
Staff turnover rates
HIPAA violation lists
Prescription data - ANSWER- HCAHPS scores
There have been recent complaints at a pharmacy regarding care, wait times, and errors. The
administrator wants to further examine customer satisfaction rates. After examining more
information the administrator decides to develop a new patient portal that will allow patients
perform a refill request online. The system will also allow patients to request refills via text o
mobile devices.Which two sources of data were used in the change from the old system to the
new system? 2 answers
Patient wait times
Patient portal usage
Patient satisfaction surveys
Patient demographic profiles - ANSWER- Patient wait times
Patient satisfaction surveys
A hospital is experiencing a high rate of nursing turnover during the first year at the hospital.
There are many theories as to why turnover in this cohort is so high. The chief executive
officer (CEO) has asked the nursing director to study this further and develop some tactics to
improve nursing retention. The director plans to gather data, conduct some statistical analysis
and report back to the CEO with an improvement plan.Which type of data would the director
gather to develop this plan?
Competitor turnover rates
Hospital tenure for nurses
Overall hospital turnover rate
Frequency of hire dates for nurses - ANSWER- Hospital tenure for nurses
,4 | Page
A large urban hospital has implemented a new patient registration system to reduce patient
complaints, streamline the process, and make it easier to understand.The hospital had been
monitoring patient wait times for registration prior to implementing this change.Which aspect
of wait time was analyzed in the application of descriptive statistics applied for this scenario?
A p-value of wait times was analyzed.
An ANOVA of wait times was analyzed.
An average of wait times was analyzed.
A chi-square of wait times was analyzed. - ANSWER- An average of wait times was analyze
The quality improvement team is reviewing quarterly incident reports and evaluating the effe
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. Th
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
2025-2026 WGU D514 OBJECTIVE ASSESSMENT FINAL/WGU D514
ANALYTICAL METHODS OF HEALTHCARE LEADERS OA ALL
QUESTIONS AND CORRECT DETAILED ANSWERS | ALREADY A
GRADED
Using publicly reported data from Centers for Medicare & Medicaid Services, researchers wa
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
,2 | Page
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.Research
MethodsA 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 Repor
Information System, the American Hospital Association, and the Area Health Resource File.
Descriptive statistics are used to summarize the data. An ordinary least squares regression is
used to test the relationship between ownership status and hospital quality while controlling f
hospital and market characteristics.Which component is missing from these research methods
Analysis plan
Data collection
Study population
Research design - ANSWER- Research design
Assoc. between pt satisfaction & hospital market share. Researcher hypothesizes that increase
pt satisfaction will lead to increase in hosp. market share. Longitudinal study of 7 years will b
conducted to assess the change in hospital market share over time. Urban hospitals from the
U.S. that have > 100 beds will be included. The data set will include hosp. characteristics and
market characteristics. Admin. data will be obtained from the Am. Hospital Association's
Annual Survey of Hospitals, the Area Health Resources File, and the Hosp. Compare website
The variables included in the data set will control for other factors that may impact hospital p
satisfaction. Stat. significance will be set at α = 0.05 for the analysis. The results of the analys
will be of interest to hospital administrators and policy makers. Which component is missing?
Analysis plan Data collection Study population Research design - ANSWER- Analysis plan
After reviewing a quality report from a large urban hospital, an administrator decided to
implement a new initiative to improve communication among healthcare professionals. The
hospital administrator conducted a survey on safety and error prevention that revealed that
ineffective or insufficient communication among team members is a significant contributing
factor to adverse events.Which source of data would have been used to highlight patient
perception of care?
HCAHPS scores
,3 | Page
Staff turnover rates
HIPAA violation lists
Prescription data - ANSWER- HCAHPS scores
There have been recent complaints at a pharmacy regarding care, wait times, and errors. The
administrator wants to further examine customer satisfaction rates. After examining more
information the administrator decides to develop a new patient portal that will allow patients
perform a refill request online. The system will also allow patients to request refills via text o
mobile devices.Which two sources of data were used in the change from the old system to the
new system? 2 answers
Patient wait times
Patient portal usage
Patient satisfaction surveys
Patient demographic profiles - ANSWER- Patient wait times
Patient satisfaction surveys
A hospital is experiencing a high rate of nursing turnover during the first year at the hospital.
There are many theories as to why turnover in this cohort is so high. The chief executive
officer (CEO) has asked the nursing director to study this further and develop some tactics to
improve nursing retention. The director plans to gather data, conduct some statistical analysis
and report back to the CEO with an improvement plan.Which type of data would the director
gather to develop this plan?
Competitor turnover rates
Hospital tenure for nurses
Overall hospital turnover rate
Frequency of hire dates for nurses - ANSWER- Hospital tenure for nurses
,4 | Page
A large urban hospital has implemented a new patient registration system to reduce patient
complaints, streamline the process, and make it easier to understand.The hospital had been
monitoring patient wait times for registration prior to implementing this change.Which aspect
of wait time was analyzed in the application of descriptive statistics applied for this scenario?
A p-value of wait times was analyzed.
An ANOVA of wait times was analyzed.
An average of wait times was analyzed.
A chi-square of wait times was analyzed. - ANSWER- An average of wait times was analyze
The quality improvement team is reviewing quarterly incident reports and evaluating the effe
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. Th
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
