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1. 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: Time-series
2. A hospital researcher has access to one year of hospital emergency depart-
ment 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: Cross Sectional
3. A policy analyst is interested in determining if the prospective payment sys-
tem (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 vari-
ables. 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
, WGU D514 ANALYTICAL METHODS OF HEALTHCARE LEADERS EXAM COM
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Pretest-posttest
Randomized Control Trial: Time-Series
4. 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: Reporting the distribution of results or
outcomes
5. 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: Introduces subjectivity to data collection
6. Many physician practices now utilize an electronic health record (EHR) system
that includes a secure messaging feature. Some of these practices have extend-
ed their contact with patients by conducting virtual visits between people with
diabetes and nurses who are certified diabetes educators. The remote tech-
nology 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
7. 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 as-
sess the clinical effectiveness of these documents on patient outcomes.Which
research method is being used?
, WGU D514 ANALYTICAL METHODS OF HEALTHCARE LEADERS EXAM COM
PLETE QUESTIONS WITH 100% RATED CORRECT ANSWERS 100% VERIFIED
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Case study
Cohort study
Meta-analysis
Literature review: Meta-analysis
8. The state public health researcher wants to begin a five-year initiative to coor-
dinate 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
9. 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
10. Researchers want to determine if a particular risk factor or risk factors are as-
sociated 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