WGU D514 Exam Prep | High-Yield Questions, Detailed
Rationales & Comprehensive Study Guide | Graded A+,
Well Verified Correct Answers and Well Detailed |
Frequently Most Tested Questions and Fully Updated |
Latest Exam and Brand New Version!!!!
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
CORRECT ANSWER:
Time-series
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
Pretest-posttest
Randomized Control Trial
CORRECT ANSWER:
Cross Sectional
,A policy analyst is interested 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
CORRECT ANSWER:
Time-Series
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
CORRECT ANSWER:
Reporting the distribution of results or outcomes
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
CORRECT ANSWER:
Introduces subjectivity to data collection
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
CORRECT ANSWER:
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
CORRECT ANSWER:
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
CORRECT ANSWER:
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
CORRECT ANSWER:
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
CORRECT ANSWER:
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
CORRECT ANSWER:
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
Rationales & Comprehensive Study Guide | Graded A+,
Well Verified Correct Answers and Well Detailed |
Frequently Most Tested Questions and Fully Updated |
Latest Exam and Brand New Version!!!!
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
CORRECT ANSWER:
Time-series
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
Pretest-posttest
Randomized Control Trial
CORRECT ANSWER:
Cross Sectional
,A policy analyst is interested 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
CORRECT ANSWER:
Time-Series
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
CORRECT ANSWER:
Reporting the distribution of results or outcomes
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
CORRECT ANSWER:
Introduces subjectivity to data collection
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
CORRECT ANSWER:
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
CORRECT ANSWER:
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
CORRECT ANSWER:
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
CORRECT ANSWER:
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
CORRECT ANSWER:
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
CORRECT ANSWER:
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
