WGU C985 Health care Analytics Questions
with Correct Solutions
Linear regression - CoRRect SoluTion 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 - CoRRect SoluTion 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 - CoRRect SoluTion 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 - CoRRect SoluTion 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 - CoRRect SoluTion 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 - CoRRect SoluTion
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 - CoRRect SoluTion 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.
National Center for Health Statistics (NCHS) - CoRRect SoluTion Operates
through the CDC: data on birth, death, marriages, divorces, and fetal deaths.
Public Health Databases - CoRRect SoluTion 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) - CoRRect SoluTion 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) - CoRRect SoluTion 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 - CoRRect SoluTion Medical screening and medical
_______________ are two fundamental strategies for optimizing employee health.
Medical screening is only one component of a comprehensive medical
_____________ program. The fundamental purpose of screening is early diagnosis
and treatment of the individual and thus has a clinical focus.
with Correct Solutions
Linear regression - CoRRect SoluTion 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 - CoRRect SoluTion 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 - CoRRect SoluTion 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 - CoRRect SoluTion 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 - CoRRect SoluTion 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 - CoRRect SoluTion
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 - CoRRect SoluTion 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.
National Center for Health Statistics (NCHS) - CoRRect SoluTion Operates
through the CDC: data on birth, death, marriages, divorces, and fetal deaths.
Public Health Databases - CoRRect SoluTion 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) - CoRRect SoluTion 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) - CoRRect SoluTion 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 - CoRRect SoluTion Medical screening and medical
_______________ are two fundamental strategies for optimizing employee health.
Medical screening is only one component of a comprehensive medical
_____________ program. The fundamental purpose of screening is early diagnosis
and treatment of the individual and thus has a clinical focus.
