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chda exam 2 Questions With Complete Solutions
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chda exam 2 Questions With Complete Solutions
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chda exam 2 Questions With Complete Solutions___ are appropriate for comparing a summary statistic such as
volume or an average across groups Correct Answer Bar
graphs
____ are a useful method for displaying the relationship between
two categorical variables. Correct Answer Contingency tables
____ is a service that enables the exchange of information across
multiple independent enterprises that have unilateral
independent exchange data and in which there is no access to
personal health information Correct Answer switch
____ is a statistical test that is used to test for relationships
between categorical variables Correct Answer Chi-squared
_____ is a technology that allows an organization to logically
link their physical data repositories. The data are entered into the
repositories by the organizations' various "feeder" applications,
and the users must be able to manipulate, update, retrieve, and
otherwise act on the data in real time while the data are stored in
the repositories Correct Answer Online/real-time transaction
processing (OLTP)
. HCUP is a family of databases maintained by _____.
a. CMS
b. HHS
c. AHRQ
d. CDC Correct Answer c. AHRQ
,. If a sample size of 3 is to be selected from a population of 20
using systematic random sampling, the analysis should select
every _____ observation.
a. 6
b. 3
c. 7
d. 6.67 Correct Answer 6
Selecting every fifth or every tenth member of the sampling
frame. If the population includes N members and we wish to
draw as sample of size n, then a systemic random sample could
be selected by choosing every N/nth member of the population
as the sample. The selection should start at random from a
member between the first and N/nth member. If N/n is not a
whole number, then round down to the next lower whole
number to determine the sampling interval. 20/3 = 6.67; round
down to 6
. The researcher's informed consent form stated that the patients'
information would be anonymous. Later, in the application form
for IRB approval, the researcher described a coding system to
track respondents and nonrespondents. The IRB returned the
application to the researcher with the stipulation that the
informed consent must be changed. What raised the red flag?
a. The description of the use of a coding system to track
respondents and nonrespondents
b. The application form for the IRB approval
c. The researcher's informed consent form
,d. The description of the use of a coding system to track
respondents Correct Answer The description of the use of a
coding system to track respondents and nonrespondents
. This type of performance measure indicates the result of the
performance or nonperformance of a function or process.
a. Outcome measure
b. Data measure
c. Process measure
d. System measure Correct Answer outcome measure
101. The relationship between patient gender and readmission to
the hospital is best displayed using a _____.
a. Frequency chart
b. Contingency table
c. Bar chart
d. Pie chart Correct Answer . Contingency table
103. In terms of grouping and reimbursement, how are the MS-
LTC-DRGs and acute-care MS-DRGs similar?
a. Relative weights
b. Divided into medical and surgical partitions
c. Categorization of low-volume groups into quintiles
d. Classification of short-stay outliers Correct Answer b.
Divided into medical and surgical partitions
108. Which graph will provide the best presentation of patient
gender for a clinic?
a. Pie chart
b. Scatter diagram
c. Bar chart
, d. Line chart Correct Answer a. Pie chart
120. Which of the following are used to report information
about mortality and morbidity at local, state, and national levels?
a. Rates, populations, and ratios
b. Ratios, proportions, and continuous variables
c. Proportions, populations, and continuous variables
d. Proportions, ratios, and rates Correct Answer d. Proportions,
ratios, and rates
126. Which graph is the best choice to use when comparing
lengths of stay across three hospitals?
a. Line graph
b. Bar chart
c. Pie chart
d. Scatter diagram Correct Answer b. Bar chart
132. Which of the following characteristics is not a
characteristic of data quality?
a. Granular
b. Valid
c. Precise
d. Current Correct Answer c. Precise
132. Which of the following positions is least likely to be held
by a health information manager?
a. Data quality administrator
b. Data analytics administrator
c. Database administrator
d. Data resource administrator Correct Answer Database
administrator
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