WGU D514 Exam Questions and Answers 2025| Verified
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
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
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
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
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
Regression analysis
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 Report 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 for hospital and market characteristics.Which component is missing
from these research methods?
Analysis plan
Data collection
Study population
Research design
Research design
Assoc. between pt satisfaction & hospital market share. Researcher hypothesizes that
increased pt satisfaction will lead to increase in hosp. market share. Longitudinal study of 7
years will be 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 pt satisfaction. Stat. significance will be set at α = 0.05 for the
analysis. The results of the analysis will be of interest to hospital administrators and policy
makers. Which component is missing? Analysis plan Data collection Study population
Research design
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?
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
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
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
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
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
Regression analysis
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 Report 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 for hospital and market characteristics.Which component is missing
from these research methods?
Analysis plan
Data collection
Study population
Research design
Research design
Assoc. between pt satisfaction & hospital market share. Researcher hypothesizes that
increased pt satisfaction will lead to increase in hosp. market share. Longitudinal study of 7
years will be 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 pt satisfaction. Stat. significance will be set at α = 0.05 for the
analysis. The results of the analysis will be of interest to hospital administrators and policy
makers. Which component is missing? Analysis plan Data collection Study population
Research design
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?
