WGU C985 HEALTH CARE ANALYTICS
QUESTIONS WITH COMPLETE
ANSWERS
Linear regression - Correct Answer - In conversations with her patients, a physical
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therapist notices that patients who are on Workman's Compensation and have
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supportive supervisors, eager for them to return to work, have more positive outcomes
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in rehabilitation than those patients whose supervisors have a negative attitude toward
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their employee's injury: insisting they not return to work until they are at 100% because
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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
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relationship?
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Regression analysis - Correct Answer - Data analysts at a large metropolitan hospital
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need to determine risk factors associated with readmission within 30 days via the
d d d d d d d d d d d d d
hospital's emergency room among patients with COPD. The variables of interest
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include age, gender, race/ethnicity, insurance status, and family support. Which
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statistical technique should be used?
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ANOVA - Correct Answer - Several community health centers across a rural state are
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gathering data on their pre-diabetic patients and using A1c levels as a baseline
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measurement to include patients in a research project. Three different interventions will
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be applied.
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One group of patients will receive a special diet to follow; the second group will work
d d d d d d d d d d d d d d d
with physical therapists on a regular exercise program; the third group will follow the
d d d d d d d d d d d d d d
diet and engage in the exercise.
d d d d d d
Which statistical test will be appropriate to use to determine which treatment is most
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effective in controlling pre-diabetes?
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time series - Correct Answer - A hospital CFO is analyzing the cost benefits of using the
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dpatient reminder system, which was implemented over a year ago, to see if the
d d d d d d d d d d d d d
dautomated system results in less missed appointments ("no-shows").
d d d d d d d
She is comparing quarterly reports from this past year on volume of patients who did not
d d d d d d d d d d d d d d d
dshow up to their appointments, to the volume of patients of the previous year, who did
d d d d d d d d d d d d d d d
dnot show up to their appointments, to see if the automated system has proven effective.
d d d d d d d d d d d d d d
dShe is considering other variables as she reviews the data, but is primarily analyzing
d d d d d d d d d d d d d
dthe number of "no-show" patients from last year's quarterly reports to this year's.
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, Cross-sectional - Correct Answer - There are two standard treatments for children with
d d d d d d d d d d d d
ADHD who display a specific set of characteristics. One treatment is a cognitive
d d d d d d d d d d d d d
behavioral intervention, and the other is a dietary and biomedical intervention. Both
d d d d d d d d d d d d
treatments have equally strong clinical evidence supporting their efficacy. A researcher
d d d d d d d d d d d
proposes a comparison of the two interventions to determine which is preferable. The
d d d d d d d d d d d d d
children will be randomized to one of two groups: half of the children will receive the
d d d d d d d d d d d d d d d d
cognitive behavioral intervention and the other half of the children will receive the
d d d d d d d d d d d d d
dietary and biomedical intervention. Which test is appropriate to determining the
d d d d d d d d d d d
preferable treatment?
d d
The mean (average) length of stay and
d d d d d d
d
The mean number of providers seeing each patient each day - Correct Answer - The
d d d d d d d d d d d d d d
vice president, CMO, and Operations Team collected data on resources used by
d d d d d d d d d d d d
patients who have undergone coronary bypass and the length of stays for a defined
d d d d d d d d d d d d d d
population of patients who received CABG surgery. Since the raw data is complex to
d d d d d d d d d d d d d d
discuss and evaluate, the team will use descriptive statistics to analyze the data to
d d d d d d d d d d d d d d
support their decisions for recommendations.
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Which of the following descriptive statistics could prove the most useful?
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National Healthcare Survey - Correct Answer - Operates through CDC; the National
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Health Care Surveys are designed to answer key questions of interest to health care
d d d d d d d d d d d d d d
policy makers, public health professionals, and researchers.
d d d d d d d
National Center for Health Statistics (NCHS) - Correct Answer - Operates through the
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CDC: data on birth, death, marriages, divorces, and fetal deaths.
d d d d d d d d d d
Public Health Databases - Correct Answer - Incidence and prevalence of diseases,
d d d d d d d d d d d
survival statistics, high-risk populations, trends over time. Data gathered from medical
d d d d d d d d d d d
records, surveys, interviews. NCHS has responsibility for these databases.
d d d d d d d d d
National Practitioner Data Bank (NPDB) - Correct Answer - This database is queried as
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part of the physician credentialing process when applying for medical staff privileges
d d d d d d d d d d d d
and every two years afterward. It contains data on medical malpractice, adverse
d d d d d d d d d d d d
licensure actions, suspensions, certain professional review actions, such as denial of
d d d d d d d d d d d
medical staff privileges.
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Medicare Provider Analysis and Review (MEDPAR) - Correct Answer - Acute care and
d d d d d d d d d d d d
skilled nursing facility claims data. Demographics on patient, information on provider,
d d d d d d d d d d d
on Medicare coverage for the claim, total charges, charges broken down, codes and
d d d d d d d d d d d d d
diagnostic related group (DRG) data. Only contains data on Medicare patients.
d d d d d d d d d d d
Surveillance records - Correct Answer - Medical screening and medical
d d d d d d d d d
_______________ are two fundamental strategies for optimizing employee health.
d d d d d d d d d
Medical screening is only one component of a comprehensive medical _____________
d d d d d d d d d d d
program. The fundamental purpose of screening is early diagnosis and treatment of the
d d d d d d d d d d d d d
individual and thus has a clinical focus.
d d d d d d d
QUESTIONS WITH COMPLETE
ANSWERS
Linear regression - Correct Answer - In conversations with her patients, a physical
d d d d d d d d d d d d
therapist notices that patients who are on Workman's Compensation and have
d d d d d d d d d d d
supportive supervisors, eager for them to return to work, have more positive outcomes
d d d d d d d d d d d d d
in rehabilitation than those patients whose supervisors have a negative attitude toward
d d d d d d d d d d d d
their employee's injury: insisting they not return to work until they are at 100% because
d d d d d d d d d d d d d d d
if anything less they are "useless to the job".
d d d d d d d d d
What type of test could the therapist use to see if these two factors have a measurable
d d d d d d d d d d d d d d d d
relationship?
d
Regression analysis - Correct Answer - Data analysts at a large metropolitan hospital
d d d d d d d d d d d d
need to determine risk factors associated with readmission within 30 days via the
d d d d d d d d d d d d d
hospital's emergency room among patients with COPD. The variables of interest
d d d d d d d d d d d
include age, gender, race/ethnicity, insurance status, and family support. Which
d d d d d d d d d d
statistical technique should be used?
d d d d d
ANOVA - Correct Answer - Several community health centers across a rural state are
d d d d d d d d d d d d d
gathering data on their pre-diabetic patients and using A1c levels as a baseline
d d d d d d d d d d d d d
measurement to include patients in a research project. Three different interventions will
d d d d d d d d d d d d
be applied.
d d
One group of patients will receive a special diet to follow; the second group will work
d d d d d d d d d d d d d d d
with physical therapists on a regular exercise program; the third group will follow the
d d d d d d d d d d d d d d
diet and engage in the exercise.
d d d d d d
Which statistical test will be appropriate to use to determine which treatment is most
d d d d d d d d d d d d d
effective in controlling pre-diabetes?
d d d d
time series - Correct Answer - A hospital CFO is analyzing the cost benefits of using the
d d d d d d d d d d d d d d d d
dpatient reminder system, which was implemented over a year ago, to see if the
d d d d d d d d d d d d d
dautomated system results in less missed appointments ("no-shows").
d d d d d d d
She is comparing quarterly reports from this past year on volume of patients who did not
d d d d d d d d d d d d d d d
dshow up to their appointments, to the volume of patients of the previous year, who did
d d d d d d d d d d d d d d d
dnot show up to their appointments, to see if the automated system has proven effective.
d d d d d d d d d d d d d d
dShe is considering other variables as she reviews the data, but is primarily analyzing
d d d d d d d d d d d d d
dthe number of "no-show" patients from last year's quarterly reports to this year's.
d d d d d d d d d d d d
, Cross-sectional - Correct Answer - There are two standard treatments for children with
d d d d d d d d d d d d
ADHD who display a specific set of characteristics. One treatment is a cognitive
d d d d d d d d d d d d d
behavioral intervention, and the other is a dietary and biomedical intervention. Both
d d d d d d d d d d d d
treatments have equally strong clinical evidence supporting their efficacy. A researcher
d d d d d d d d d d d
proposes a comparison of the two interventions to determine which is preferable. The
d d d d d d d d d d d d d
children will be randomized to one of two groups: half of the children will receive the
d d d d d d d d d d d d d d d d
cognitive behavioral intervention and the other half of the children will receive the
d d d d d d d d d d d d d
dietary and biomedical intervention. Which test is appropriate to determining the
d d d d d d d d d d d
preferable treatment?
d d
The mean (average) length of stay and
d d d d d d
d
The mean number of providers seeing each patient each day - Correct Answer - The
d d d d d d d d d d d d d d
vice president, CMO, and Operations Team collected data on resources used by
d d d d d d d d d d d d
patients who have undergone coronary bypass and the length of stays for a defined
d d d d d d d d d d d d d d
population of patients who received CABG surgery. Since the raw data is complex to
d d d d d d d d d d d d d d
discuss and evaluate, the team will use descriptive statistics to analyze the data to
d d d d d d d d d d d d d d
support their decisions for recommendations.
d d d d d
Which of the following descriptive statistics could prove the most useful?
d d d d d d d d d d
National Healthcare Survey - Correct Answer - Operates through CDC; the National
d d d d d d d d d d d
Health Care Surveys are designed to answer key questions of interest to health care
d d d d d d d d d d d d d d
policy makers, public health professionals, and researchers.
d d d d d d d
National Center for Health Statistics (NCHS) - Correct Answer - Operates through the
d d d d d d d d d d d d
CDC: data on birth, death, marriages, divorces, and fetal deaths.
d d d d d d d d d d
Public Health Databases - Correct Answer - Incidence and prevalence of diseases,
d d d d d d d d d d d
survival statistics, high-risk populations, trends over time. Data gathered from medical
d d d d d d d d d d d
records, surveys, interviews. NCHS has responsibility for these databases.
d d d d d d d d d
National Practitioner Data Bank (NPDB) - Correct Answer - This database is queried as
d d d d d d d d d d d d d
part of the physician credentialing process when applying for medical staff privileges
d d d d d d d d d d d d
and every two years afterward. It contains data on medical malpractice, adverse
d d d d d d d d d d d d
licensure actions, suspensions, certain professional review actions, such as denial of
d d d d d d d d d d d
medical staff privileges.
d d d
Medicare Provider Analysis and Review (MEDPAR) - Correct Answer - Acute care and
d d d d d d d d d d d d
skilled nursing facility claims data. Demographics on patient, information on provider,
d d d d d d d d d d d
on Medicare coverage for the claim, total charges, charges broken down, codes and
d d d d d d d d d d d d d
diagnostic related group (DRG) data. Only contains data on Medicare patients.
d d d d d d d d d d d
Surveillance records - Correct Answer - Medical screening and medical
d d d d d d d d d
_______________ are two fundamental strategies for optimizing employee health.
d d d d d d d d d
Medical screening is only one component of a comprehensive medical _____________
d d d d d d d d d d d
program. The fundamental purpose of screening is early diagnosis and treatment of the
d d d d d d d d d d d d d
individual and thus has a clinical focus.
d d d d d d d
