1 | Page
D514/ WGU D514 EXAM/ WGU D514
OA EXAM
QUESTIONS AND CORRECT
DETAILED ANSWERS
GRADED A+
D
O
The quality improvement team is reviewing quarterly incident reports
N
and evaluating the effect of Six Sigma strategies on the quantity of
O
medication errors over the past two years. The team hypothesizes a
T
continuous reduction in medical errors for each quarter. The sample
C
consists of patient clinical and demographic characteristics.
O
Unfortunately, causation cannot be determined from the data available.
PY
Which research method should be used to test the team's hypothesis?
Time-Series
Cross-Sectional
Pretest-posttest
Randomized Control Trial - ✔✔✔ Correct Answer > Time-series
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
,2 | Page
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
D
collection Study population Research design - ✔✔✔ Correct Answer >
O
Analysis plan
N
O
A policy analyst is interested in determining if the prospective payment
T
system (PPS) has improved hospital efficiency over time during the past
C
ten years. The sample for analysis consists of ten years of data after the
O
introduction of the PPS and includes measures of efficiency and other
PY
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 - ✔✔✔ Correct Answer > Time-Series
, 3 | Page
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. 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
D
Pretest-posttest
O
Randomized Control Trial - ✔✔✔ Correct Answer > Cross Sectional
N
O
T
C
A hospital would like to reduce the outstanding accounts receivables
O
with large amounts. The chief financial officer (CFO) asked the director
PY
of patient accounts to identify delinquent accounts based on patient
demographics to create a collection process through the patient portal.
How should the CFO use the data?
To outsource the hospital's collection function
To implement improvements in the revenue cycle process
To explain delays in collection to the board's finance committee
To replace staff in areas where substandard performance is identified -
✔✔✔ Correct Answer > To implement improvements in the revenue cycle
process
D514/ WGU D514 EXAM/ WGU D514
OA EXAM
QUESTIONS AND CORRECT
DETAILED ANSWERS
GRADED A+
D
O
The quality improvement team is reviewing quarterly incident reports
N
and evaluating the effect of Six Sigma strategies on the quantity of
O
medication errors over the past two years. The team hypothesizes a
T
continuous reduction in medical errors for each quarter. The sample
C
consists of patient clinical and demographic characteristics.
O
Unfortunately, causation cannot be determined from the data available.
PY
Which research method should be used to test the team's hypothesis?
Time-Series
Cross-Sectional
Pretest-posttest
Randomized Control Trial - ✔✔✔ Correct Answer > Time-series
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
,2 | Page
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
D
collection Study population Research design - ✔✔✔ Correct Answer >
O
Analysis plan
N
O
A policy analyst is interested in determining if the prospective payment
T
system (PPS) has improved hospital efficiency over time during the past
C
ten years. The sample for analysis consists of ten years of data after the
O
introduction of the PPS and includes measures of efficiency and other
PY
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 - ✔✔✔ Correct Answer > Time-Series
, 3 | Page
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. 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
D
Pretest-posttest
O
Randomized Control Trial - ✔✔✔ Correct Answer > Cross Sectional
N
O
T
C
A hospital would like to reduce the outstanding accounts receivables
O
with large amounts. The chief financial officer (CFO) asked the director
PY
of patient accounts to identify delinquent accounts based on patient
demographics to create a collection process through the patient portal.
How should the CFO use the data?
To outsource the hospital's collection function
To implement improvements in the revenue cycle process
To explain delays in collection to the board's finance committee
To replace staff in areas where substandard performance is identified -
✔✔✔ Correct Answer > To implement improvements in the revenue cycle
process
