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WGU D514 OBJECTIVE ASSESSMENT VERSION
1 AND 2 NEWEST 2025 ACTUAL EXAM
COMPLETE 200 QUESTIONS AND CORRECT
DETAILED ANSWERS (VERIFIED ANSWERS)
|100% GUARANTEED PASS!
Below are the answers to the healthcare statistics and research- related questions posed, using the exact wording "THE CORRECT ANSWER is" followed by the provided answer from the context, without changes, omissions, or explanations.All answers are based on the document provided.
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1. Linear regression: In conversations with her patients, a
physical therapist notices that patients who are on Workman's Compensation and have supportive supervisors, eager for them to return to work, have more positive outcomes in rehabilitation than those patients whose supervisors have a negative attitude
toward their employee's injury: insisting they not return to work
until they are at 100% because if anything less they are "useless to the job". What type of test could the therapist use to see if these two factors have a measurable relationship?
- THE CORRECT ANSWER is: Linear regression
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2. Regression analysis: Data analysts at a large metropolitan
hospital need to determine risk factors associated with readmission within 30 days via the hospital's emergency room among patients with COPD. The variables of interest include age, gender, race/ethnicity, insurance status, and family support.Which statistical technique should be used?
- THE CORRECT ANSWER is: Regression analysis
3. ANOVA: Several community health centers across a rural
state are gathering data on their pre-diabetic patients and using A1c levels as a baseline measurement to include patients in a research project. Three different interventions will be applied.One group of patients will receive a special diet to follow; the second group will work with physical therapists on a regular exercise program; the third group will follow the diet and engage in the exercise. Which statistical test will be appropriate to use to determine which treatment is most effective in controlling pre-diabetes?
- THE CORRECT ANSWER is: ANOVA
4. Time series: A hospital CFO is analyzing the cost benefits of
using the patient reminder system, which was implemented over a year ago, to see if the automated system results in less missed appointments ("no-shows"). She is comparing quarterly reports from this past year on volume of patients who did not show up to their appointments, to the volume of patients of the previous
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year, who did not show up to their appointments, to see if the automated system has proven effective. She is considering other variables as she reviews the data, but is primarily analyzing the number of "no-show" patients from last year's quarterly reports to this year's. Which statistical test is appropriate?
- THE CORRECT ANSWER is: Time series
5. Cross-sectional: There are two standard treatments for
children with ADHD who display a specific set of characteristics. One treatment is a cognitive behavioral intervention, and the other is a dietary and biomedical intervention. Both treatments have equally strong clinical evidence supporting their efficacy. A researcher proposes a comparison of the two interventions to determine which is preferable. The children will be randomized to one of two
groups: half of the children will receive the cognitive behavioral
intervention and the other half of the children will receive the dietary and biomedical intervention. Which test is appropriate to determining the preferable treatment?
- THE CORRECT ANSWER is: Cross-sectional
- The mean (average) length of stay and the mean number of
providers seeing each patient each day: The vice president,
CMO, and Operations Team collected data on resources used by patients who have undergone coronary bypass and the length of stays for a defined population of patients who received CABG
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surgery. Since the raw data is complex to discuss and evaluate, the team will use descriptive statistics to analyze the data to support their decisions for recommendations. Which of the following descriptive statistics could prove the most useful?
- THE CORRECT ANSWER is: The mean (average) length
of stay and the mean number of providers seeing each patient each day
- What is the National Healthcare Survey?
- THE CORRECT ANSWER is: Operates through CDC; the
National Health Care Surveys are designed to answer key questions of interest to health care policy makers, public health professionals, and researchers
- What is the National Center for Health Statistics (NCHS)?
- THE CORRECT ANSWER is: Operates through the CDC:
data on birth, death, marriages, divorces, and fetal deaths
- What are Public Health Databases?
- THE CORRECT ANSWER is: Incidence and prevalence of
diseases, survival statistics, high-risk populations, trends over time. Data gathered from medical records, surveys, interviews.NCHS has responsibility for these databases