D514 Exam | 116 Questions with Correct
Solutions
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 employees' injury: insisting they do 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 exercise.
Which statistical test will be appropriate to use to determine which treatment is most
effective in controlling pre-diabetes? - ✔✔ANOVA
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
length of stay and the Mean of providers seeing patients 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
ANSWERNational 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. - ✔✔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
Acute care and skilled nursing facility claims data. Demographics on the patients,
information on providers, on Medicare coverage for the claim, total charges, charges
broken down, codes, and diagnostic-related group (DRG) data. Only contains data on
Medicare
patients. - ✔✔Medicare Provider Analysis and Review (MEDPAR)
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. - ✔✔Surveillance Records
A part of the U.S. Department of Health and Human Services, is the nation's medical
research agency — making important discoveries that improve health and save lives. -
✔✔National Center for Human Statistics (NCHS)
Solutions
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 employees' injury: insisting they do 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 exercise.
Which statistical test will be appropriate to use to determine which treatment is most
effective in controlling pre-diabetes? - ✔✔ANOVA
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
length of stay and the Mean of providers seeing patients 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
ANSWERNational 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. - ✔✔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
Acute care and skilled nursing facility claims data. Demographics on the patients,
information on providers, on Medicare coverage for the claim, total charges, charges
broken down, codes, and diagnostic-related group (DRG) data. Only contains data on
Medicare
patients. - ✔✔Medicare Provider Analysis and Review (MEDPAR)
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. - ✔✔Surveillance Records
A part of the U.S. Department of Health and Human Services, is the nation's medical
research agency — making important discoveries that improve health and save lives. -
✔✔National Center for Human Statistics (NCHS)
