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 contin-
uous 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?
2. A hospital researcher has access to one year of hospital Cross-Sectional
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 confi-
dentiality, the sample does not include patient clini-
cal information and outcomes.Which research method
should be used?
3. A policy analyst is interested in determining if the Time-Series
prospective payment system (PPS) has improved hos-
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 measures of
efficiency and other relevant control variables. The an-
alyst hypothesizes that hospital efficiency should have
increased each year after the PPS was implemented.
4. Which type of data analysis could be used in quantita- Reporting the distribution
tive research? of results or outcomes
, D514 Exam Questions And Answers With Verified Solutions 2026
5. What is a characteristic of qualitative research meth- Introduces subjectivity to
ods? data collection.
6. Many physician practices now utilize an electronic Cross-sectional
health record (EHR) system that includes a secure mes-
saging 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 evalu-
ated. Which research method was used?
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?
8. The state public health researcher wants to begin pre/post study
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 effective-
ness of the initiative. Which research method should
be used to study this initiative?
9. Using publicly reported data from Centers for Regression analysis
Medicare & Medicaid Services, researchers want to ex-
amine the relationship between 30-day readmissions