WGU C985 HEALTH CARE ANALYTICS EXAM WITH QUESTIONS AND ANSWERS

WGU C985 HEALTH CARE
ANALYTICS EXAM WITH
QUESTIONS AND
ANSWERS




Linear regression - correct answer-
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In conversations with her patients, a physical therapist notices that patients who are on
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Workman's Compensation and have supportive supervisors, eager for them to return to
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bwork, have more positive outcomes in rehabilitation than those patients whose supervi
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sors have a negative attitude toward their employee's injury: insisting they not return to
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work until they are at 100% because if anything less they are "useless to the job".
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What type of test could the therapist use to see if these two factors have a measurable r
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elationship?

Regression analysis - correct answer- b b b b


Data analysts at a large metropolitan hospital need to determine risk factors associated
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with readmission within 30 days via the hospital's emergency room among patients wit
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h COPD. The variables of interest include age, gender, race/
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ethnicity, insurance status, and family support. Which statistical technique should be us
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ed?

ANOVA - correct answer- b b b


Several community health centers across a rural state are gathering data on their pre-
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, diabetic patients and using A1c levels as a baseline measurement to include patients in
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a research project. Three different interventions will be applied.
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One group of patients will receive a special diet to follow; the second group will work wit
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h physical therapists on a regular exercise program; the third group will follow the diet a
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nd engage in the exercise.
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Which statistical test will be appropriate to use to determine which treatment is most eff
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ective in controlling pre-diabetes? b b b




time series - correct answer-
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A hospital CFO is analyzing the cost benefits of using the patient reminder system, whic
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h was implemented over a year ago, to see if the automated system results in less miss
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ed appointments ("no-shows").
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She is comparing quarterly reports from this past year on volume of patients who did no
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t show up to their appointments, to the volume of patients of the previous year, who did
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not show up to their appointments, to see if the automated system has proven effective.
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bShe is considering other variables as she reviews the data, but is primarily analyzing th
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e number of "no-show" patients from last year's quarterly reports to this year's.
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Cross-sectional - correct answer- b b b


There are two standard treatments for children with ADHD who display a specific set of
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characteristics. One treatment is a cognitive behavioral intervention, and the other is a b b b b b b b b b b b b b


dietary and biomedical intervention. Both treatments have equally strong clinical evide
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nce supporting their efficacy. A researcher proposes a comparison of the two interventi
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ons to determine which is preferable. The children will be randomized to one of two gro
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ups: half of the children will receive the cognitive behavioral intervention and the other h
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alf of the children will receive the dietary and biomedical intervention. Which test is appr
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opriate to determining the preferable treatment?
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The mean (average) length of stay and
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b


The mean number of providers seeing each patient each day - correct answer-
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The vice president, CMO, and Operations Team collected data on resources used by p
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atients who have undergone coronary bypass and the length of stays for a defined popu
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lation of patients who received CABG surgery. Since the raw data is complex to discuss
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band evaluate, the team will use descriptive statistics to analyze the data to support their
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bdecisions for recommendations. b b


Which of the following descriptive statistics could prove the most useful?
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National Healthcare Survey - correct answer- b b b b b


Operates through CDC; the National Health Care Surveys are designed to answer key
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questions of interest to health care policy makers, public health professionals, and rese
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archers.

National Center for Health Statistics (NCHS) - correct answer-
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Operates through the CDC: data on birth, death, marriages, divorces, and fetal deaths.
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Public Health Databases - correct answer-
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Incidence and prevalence of diseases, survival statistics, high-
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