WGU D514 QUESTIONS AND ANSWERS SURE A+
✔✔Used to study linear relationship between depended variable (risk of skin cancer)
and independent variable (sun exposure) - ✔✔Linear Regression
✔✔Processes large amount of data quickly. Need it now - ✔✔Multidimensional
database
✔✔Participants identified through a number key system - ✔✔Research Identified
✔✔national practitioner data base - ✔✔used when onboarding physicians
✔✔Agency healthcare research and quality AHRQ - ✔✔Produces evidence to make HC
safer, high quality, etc.
✔✔Hospital consumer assessment of HC providers and systems HCAHPS - ✔✔Pt
satisfaction survey required by CMS
✔✔Medical expenditure panel survey MEPS - ✔✔Lrg scale survey of families and
individuals, their medical providers, and employers.1
✔✔Analyze data from specific point in time - ✔✔Prevalence (cross sectional)
✔✔Research design - ✔✔how
✔✔Study population - ✔✔who
✔✔data collection - ✔✔where
✔✔analysis plan - ✔✔what
✔✔Group of participants over time - ✔✔cohort
, ✔✔ 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
✔✔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 - ✔✔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 - ✔✔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 - ✔✔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
✔✔Used to study linear relationship between depended variable (risk of skin cancer)
and independent variable (sun exposure) - ✔✔Linear Regression
✔✔Processes large amount of data quickly. Need it now - ✔✔Multidimensional
database
✔✔Participants identified through a number key system - ✔✔Research Identified
✔✔national practitioner data base - ✔✔used when onboarding physicians
✔✔Agency healthcare research and quality AHRQ - ✔✔Produces evidence to make HC
safer, high quality, etc.
✔✔Hospital consumer assessment of HC providers and systems HCAHPS - ✔✔Pt
satisfaction survey required by CMS
✔✔Medical expenditure panel survey MEPS - ✔✔Lrg scale survey of families and
individuals, their medical providers, and employers.1
✔✔Analyze data from specific point in time - ✔✔Prevalence (cross sectional)
✔✔Research design - ✔✔how
✔✔Study population - ✔✔who
✔✔data collection - ✔✔where
✔✔analysis plan - ✔✔what
✔✔Group of participants over time - ✔✔cohort
, ✔✔ 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
✔✔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 - ✔✔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 - ✔✔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 - ✔✔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
