WGU D514 Exam Questions & Answers
The quality improvement Time-series
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
,A hospital researcher has Cross Sectional
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
A policy analyst is interested Time-Series
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
Cross-
Sectional
Pretest-
posttest
Randomized Control Trial
Which type of data analysis Reporting the distribution of results or outcomes
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
What is a characteristic of Introduces subjectivity to data collection
qualitative research
methods?
Utilizes large sample
sizes Determines causal
relationships Generalizes
results to the population
Introduces subjectivity to data
collection
, Many physician practices Cross-sectional
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
The quality improvement Time-series
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
,A hospital researcher has Cross Sectional
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
A policy analyst is interested Time-Series
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
Cross-
Sectional
Pretest-
posttest
Randomized Control Trial
Which type of data analysis Reporting the distribution of results or outcomes
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
What is a characteristic of Introduces subjectivity to data collection
qualitative research
methods?
Utilizes large sample
sizes Determines causal
relationships Generalizes
results to the population
Introduces subjectivity to data
collection
, Many physician practices Cross-sectional
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
