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WGU D514 EXAM ANALYTICAL METHODS OF
HEALTHCARE LEADERS - COMPLETE 350
QUESTIONS AND VERIFIED SOLUTIONS
LATEST UPDATE THIS YEAR
WGU D514 EXAM
QUESTION: 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 - ANSWER-Meta-analysis
QUESTION: 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 1 / 4
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Pre/post-study - ANSWER-Pre/post-study
QUESTION: 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 - ANSWER-Regression analysis
QUESTION: 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 - ANSWER-Regression analysis
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QUESTION: 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 - ANSWER-Research design
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 - ANSWER-Time-series 3 / 4
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QUESTION: 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 - ANSWER-Cross Sectional
QUESTION: 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 - ANSWER-Time-Series
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