QUESTIONS AND CORRECT DETAILED ANSWERS (100%
CORRECT VERIFIED SOLUTIONS) A NEW UPDATED
VERSION 2025/2026 |GUARANTEED PASS A+ (FULL
REVISED TEST) BRAND NEW!! WGU D514 OA
The quality improvement team is reviewing quarterly incident reports and evaluati
h h h h h h h h h h
ng the effect of Six Sigma strategies on the quantity of medication errors over the p
h h h h h h h h h h h h h h h
ast two years. The team hypothesizes a continuous reduction in medical errors for
h h h h h h h h h h h h h
each quarter.The sample consists of patient clinical and demographic characteristi
h h h h h h h h h
cs. Unfortunately, causation cannot be determined from the data available.Which r
h h h h h h h h h h
esearch method should be used to test the team's hypothesis?
h h h h h h h h h h
Time-Series
,Cross-Sectional
Pretest-posttest
Randomized Control Trial - answerTime-series
h h h h
A hospital researcher has access to one year of hospital emergency department cla
h h h h h h h h h h h h
ims data. The researcher is investigating the association of race on the timeliness o
h h h h h h h h h h h h h
f delivery of care. The sample includes information on patient demographics, insur
h h h h h h h h h h h
ance information, and emergency department factors. Due to patient confidentiali
h h h h h h h h h
ty, the sample does not include patient clinical information and outcomes.Which r
h h h h h h h h h h h
esearch method should be used?
h h h h
Time-Series
Cross-Sectional
Pretest-posttest
Randomized Control Trial - answerCross Sectional
h h h h h
,A policy analyst is interested in determining if the prospective payment system (PP
h h h h h h h h h h h h
S) has improved hospital efficiency over time during the past ten years. The sample
h h h h h h h h h h h h h
for analysis consists of ten years of data after the introduction of the PPS and inclu
h h h h h h h h h h h h h h h h
des measures of efficiency and other relevant control variables. The analyst hypoth
h h h h h h h h h h h
esizes that hospital efficiency should have increased each year after the PPS was im
h h h h h h h h h h h h h
plemented.Which research method should the analyst use? h h h h h h
Time-Series
Cross-Sectional
Pretest-posttest
Randomized Control Trial - answerTime-Series
h h h h
Which type of data analysis could be used in quantitative research?
h h h h h h h h h h
Reporting the gender of participants
h h h h
, Ranking the severity order with 1 as the worst and 4 as the best
h h h h h h h h h h h h h
Reporting the distribution of results or outcomes
h h h h h h
Using categorical variables with 0=no and 1=yes -
h h h h h h h
answerReporting the distribution of results or outcomes
h h h h h h h
What is a characteristic of qualitative research methods?
h h h h h h h
Utilizes large sample sizes
h h h
Determines causal relationships
h h
Generalizes results to the population
h h h h
Introduces subjectivity to data collection -
h h h h h
answerIntroduces subjectivity to data collection
h h h h h