D514 / D 514 Pre-Assessment (Latest Update )
Analytical Methods of Healthcare Leaders | Questions with
Verified Answers | Grade A | 100% Correct - WGU
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?
Linear regression
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?
Regression analysis
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?
ANOVA
, D514 / D 514 Pre-Assessment (Latest Update )
Analytical Methods of Healthcare Leaders | Questions with
Verified Answers | Grade A | 100% Correct - WGU
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.
time series
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?
Cross-sectional
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?
The mean (average) length of stay and
, D514 / D 514 Pre-Assessment (Latest Update )
Analytical Methods of Healthcare Leaders | Questions with
Verified Answers | Grade A | 100% Correct - WGU
The mean number of providers seeing each patient each day
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 Healthcare Survey
Operates through the CDC: data on birth, death, marriages, divorces, and fetal deaths.
National Center for Health Statistics (NCHS)
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.
Public Health Databases
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.
National Practitioner Data Bank (NPDB)
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.
Analytical Methods of Healthcare Leaders | Questions with
Verified Answers | Grade A | 100% Correct - WGU
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?
Linear regression
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?
Regression analysis
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?
ANOVA
, D514 / D 514 Pre-Assessment (Latest Update )
Analytical Methods of Healthcare Leaders | Questions with
Verified Answers | Grade A | 100% Correct - WGU
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.
time series
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?
Cross-sectional
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?
The mean (average) length of stay and
, D514 / D 514 Pre-Assessment (Latest Update )
Analytical Methods of Healthcare Leaders | Questions with
Verified Answers | Grade A | 100% Correct - WGU
The mean number of providers seeing each patient each day
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 Healthcare Survey
Operates through the CDC: data on birth, death, marriages, divorces, and fetal deaths.
National Center for Health Statistics (NCHS)
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.
Public Health Databases
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.
National Practitioner Data Bank (NPDB)
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.
