Page 1 of 271
CHDA EXAM TEST BANK COMPLETE 500+ QUESTIONS AND
DETAILED SOLUTIONS LATEST UPDATE THIS YEAR
CHDA Exam 1
QUESTION: The most common architecture used in EHRs in hospitals today is _____.
a. Client/server
b. Mainframe
c. Network computers
d. Web-based - ANSWER-Client/server
QUESTION: Which of these best describes the nature of the relationship between a table of CPT
codes and a table of APCs?
a. One-to-one
b. One-to-many
c. Many-to-many
d. Not enough information to determine - ANSWER-b. One-to-many
QUESTION: A manager at your facility believes that elderly females take advantage of free
clinical education offerings more often than elderly males. If proven true, she plans to revamp
the educational tools for the elderly males. Which of the following is the statistical test you
would use to test for a relationship between gender and use of educational offerings?
1
,Page 2 of 271
a. Analysis of variance
b. Chi-square test of independence
c. Regression analysis
d. Descriptive statistics - ANSWER-b. Chi-square test of independence
QUESTION: Standard deviation is intended to measure the _____ of a set of data.
a. Magnitude
b. Central tendency
c. Variability
d. Quantity - ANSWER-c. Variability
QUESTION: The ____ for a one-sample t-test are one less than the sample size, n - ANSWER-
degrees of freedom
QUESTION: Which of the following is the statistical test used for differences among more than
two means?
a. The confidence interval
b. Analysis of variance
c. Two-tailed t-test
d. Chi-square test of independence - ANSWER-b. Analysis of variance (ANOVA)
2
,Page 3 of 271
QUESTION: Which of the following should be considered when selecting an alpha level for a
hypothesis test?
a. The cost of incorrectly rejecting the null hypothesis.
b. Alpha level is 0.05 based on statistical standards.
c. The sample size.
d. The proportion of successes observed in the data. - ANSWER-The cost of incorrectly rejecting
the null hypothesis.
QUESTION: A sample of 10 patients from General Hospital was selected to determine the rate
that prescriptions were filled after discharge from the facility. 8 of the 10 patients did fill their
prescriptions. If the target for this rate is 95 percent, what hypothesis test should be completed
to determine if GH meets the standard?
a. Chi square
b. Two-sample Z-test for proportions
c. t-test
d. One-sample Z-test for proportions - ANSWER-d. One-sample Z-test for proportions
The most common ____ software applications include Microsoft Access, Oracle, and Microsoft
structured query language (SQL) Serve - ANSWER-relational database
3
, Page 4 of 271
QUESTION: Relational databases that store historical, demographic and transaction data about
clinical, administrative, and financial patient information are referred to as _____.
a. Enterprise master patient indexes
b. Data warehouses
c. Electronic data interchanges
d. Neural networks - ANSWER-b. Data warehouses
QUESTION: ____ is a statistical test that is used to test for relationships between categorical
variables - ANSWER-Chi-squared
QUESTION: Which of the following is the term that describes a method of combining data that
may be categorized by clinical classification systems as well as those classified by clinical
nomenclatures?
a. Ontology
b. Schema
c. Data model
d. Health information exchange - ANSWER-a. Ontology
QUESTION: Your organization has contracted with CMS to participate in an initiative. As part of
this, CMS will send you large extracts of data monthly. Which of the following is the best type of
tool to store these extracts in?
4
CHDA EXAM TEST BANK COMPLETE 500+ QUESTIONS AND
DETAILED SOLUTIONS LATEST UPDATE THIS YEAR
CHDA Exam 1
QUESTION: The most common architecture used in EHRs in hospitals today is _____.
a. Client/server
b. Mainframe
c. Network computers
d. Web-based - ANSWER-Client/server
QUESTION: Which of these best describes the nature of the relationship between a table of CPT
codes and a table of APCs?
a. One-to-one
b. One-to-many
c. Many-to-many
d. Not enough information to determine - ANSWER-b. One-to-many
QUESTION: A manager at your facility believes that elderly females take advantage of free
clinical education offerings more often than elderly males. If proven true, she plans to revamp
the educational tools for the elderly males. Which of the following is the statistical test you
would use to test for a relationship between gender and use of educational offerings?
1
,Page 2 of 271
a. Analysis of variance
b. Chi-square test of independence
c. Regression analysis
d. Descriptive statistics - ANSWER-b. Chi-square test of independence
QUESTION: Standard deviation is intended to measure the _____ of a set of data.
a. Magnitude
b. Central tendency
c. Variability
d. Quantity - ANSWER-c. Variability
QUESTION: The ____ for a one-sample t-test are one less than the sample size, n - ANSWER-
degrees of freedom
QUESTION: Which of the following is the statistical test used for differences among more than
two means?
a. The confidence interval
b. Analysis of variance
c. Two-tailed t-test
d. Chi-square test of independence - ANSWER-b. Analysis of variance (ANOVA)
2
,Page 3 of 271
QUESTION: Which of the following should be considered when selecting an alpha level for a
hypothesis test?
a. The cost of incorrectly rejecting the null hypothesis.
b. Alpha level is 0.05 based on statistical standards.
c. The sample size.
d. The proportion of successes observed in the data. - ANSWER-The cost of incorrectly rejecting
the null hypothesis.
QUESTION: A sample of 10 patients from General Hospital was selected to determine the rate
that prescriptions were filled after discharge from the facility. 8 of the 10 patients did fill their
prescriptions. If the target for this rate is 95 percent, what hypothesis test should be completed
to determine if GH meets the standard?
a. Chi square
b. Two-sample Z-test for proportions
c. t-test
d. One-sample Z-test for proportions - ANSWER-d. One-sample Z-test for proportions
The most common ____ software applications include Microsoft Access, Oracle, and Microsoft
structured query language (SQL) Serve - ANSWER-relational database
3
, Page 4 of 271
QUESTION: Relational databases that store historical, demographic and transaction data about
clinical, administrative, and financial patient information are referred to as _____.
a. Enterprise master patient indexes
b. Data warehouses
c. Electronic data interchanges
d. Neural networks - ANSWER-b. Data warehouses
QUESTION: ____ is a statistical test that is used to test for relationships between categorical
variables - ANSWER-Chi-squared
QUESTION: Which of the following is the term that describes a method of combining data that
may be categorized by clinical classification systems as well as those classified by clinical
nomenclatures?
a. Ontology
b. Schema
c. Data model
d. Health information exchange - ANSWER-a. Ontology
QUESTION: Your organization has contracted with CMS to participate in an initiative. As part of
this, CMS will send you large extracts of data monthly. Which of the following is the best type of
tool to store these extracts in?
4
