WGU C985 HEALTH CARE ANALYTICS QUESTIONS AND ANSWERS
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Course
WGU D514
Institution
WGU D514
Linear regression - right answer----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...
WGU C985 HEALTH CARE ANALYTICS
QUESTIONS AND ANSWERS
Linear regression - right answer----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?
Regression analysis - right answer----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?
ANOVA - right answer----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?
time series - right answer----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 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.
, Cross-sectional - right answer----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 mean (average) length of stay and
The mean number of providers seeing each patient each day - right answer----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 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?
National Healthcare Survey - right answer----Operates through CDC; the National
Health Care Surveys are designed to right answer--wer key questions of interest to
health care policy makers, public health professionals, and researchers.
National Center for Health Statistics (NCHS) - right answer----Operates through the
CDC: data on birth, death, marriages, divorces, and fetal deaths.
Public Health Databases - right answer----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.
National Practitioner Data Bank (NPDB) - right answer----This database is queried as
part of the physician credentialing process when applying for medical staff privileges
and every two years afterward. It contains data on medical malpractice, adverse
licensure actions, suspensions, certain professional review actions, such as denial of
medical staff privileges.
Medicare Provider Analysis and Review (MEDPAR) - right answer----Acute care and
skilled nursing facility claims data. Demographics on patient, information on provider, on
Medicare coverage for the claim, total charges, charges broken down, codes and
diagnostic related group (DRG) data. Only contains data on Medicare patients.
Surveillance records - right answer----Medical screening and medical
_______________ are two fundamental strategies for optimizing employee health.
Medical screening is only one component of a comprehensive medical _____________
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