2025 Questions and Verified Answers Graded A+
Medicare Provider Analysis and Review (MEDPAR) - CORRECT ANSWER-Acute care and
skilled nursing facility claim data on Medicare patients.
,National Practitioner Data Bank (NPDB) - CORRECT ANSWER-Database queried as part
of physician credentialing process when applying for medical staff privileges and every two
years afterward. It contains data on medical malpractice, adverse licensure actions,
suspensions, and professional review actions.
Public Health databases - CORRECT ANSWER-Holds data on incidence and prevalence of
diseases; survival statistics; high-risk populations; and tracks trends over time. Data is gathered
from medical records, surveys, and interviews. National Center for Health Statistics (NCHS) is
responsible for these databases.
National Center for Health Statistics (NCHS) - CORRECT ANSWER-Operates through the
Center for Disease Control (CDC); includes vital statistics data such as birth, death, marriages,
divorces, and fetal deaths.
National Healthcare Survey - CORRECT ANSWER-Answer key questions of interest to
healthcare policy makers, public health professionals, and researchers. Topics include quality
care, resources, safety, and disparities.
ANOVA test - CORRECT ANSWER-Analysis of variance (ANOVA) may be used in research
studies where there are two or more groups to compare.
Chi-square tests - CORRECT ANSWER-Chi-square tests determine if an association exists
between two categorical variables.
, Control group - CORRECT ANSWER-In a healthcare environment, this group of patients
does not receive the treatment that is being studied.
Experimental group - CORRECT ANSWER-This group of patients receives the treatment
being studied with follow-up observation to determine the effect of the treatment.
F-test - CORRECT ANSWER-The F-test is designed to test if two population variances are
equal. The ratio of the two variances is compared. If they are equal, the ratio of the variances
will be 1.
Frequency - CORRECT ANSWER-Frequencies measure how often a particular value
occurs to assess the importance of a value or check the variation of the values in a study.
Hypothesis - CORRECT ANSWER-A proposed explanation for an observation that leads
to a prediction. Through investigation and the use of statistical data, those doing the study will
either confirm or reject the hypothesis. Testing the hypothesis will show if there is a link (or
not) between two or more variables.
Integrity - CORRECT ANSWER-Research always makes some assumptions, depending on
the type of method used. Research assumptions must be identified to determine possible
breaches of integrity.