EPI 522 Midterm Quiz Summary- Rush University 2023/24
Height recorded in centimeters should be displayed using SELECT ALL THAT APPLY
Bar
... [Show More] chart.
Box-and-whisker plot.
Stem-and-leaf plot.
Histogram.
Question 2
The dependent variable is
The intervention being studied.
The experiemental variable.
The variable manipulated by the
researcher.
The outcome variable.
Question 3
A student is planning on conducting a quality improvement project on a unit in the university
hospital where the student is enrolled. Since the project is required by the university and the
university owns the hospital, the student does not need to obtain additional permission for
the project.
True
False
Question 4
The best way to determine whether data are normally distributed is to
Construct a box-and-whisker plot with
Tukey fences.
Construct a histogram.
Perform a Shapiro-Wilk test.
Perform a test for outliers.
Question 5
Outliers can be identified using a (SELECT ALL
THAT APPLY)
Box-and-whisker plot with
Tukey fences.
Histogram.
Stem-and-leaf plot.
Bar chart.
Any/all of the above.
Question 6
When reporting the mean for a variable, what measure of spread should be reported?
The statistical range
The standard deviation
The interquartile range
Any/all of the above would be
appropriate.
Question 8
A nurse practitioner student is completing his final practicum in the outpatient clinic of the
health care organization that is part of the university. As a part of the course requirements
for the final term, the student must complete a quality improvement project. The student
decides to examine whether the staff routinely assess vaccination status for healthy adults.
Since this is a quality improvement project for the clinic and a course requirement for the
student, does the student need any additional approvals to review patient records for this
project?
No, only research projects require approval.
Yes, the student needs to obtain appropriate permission to examine the data.
No, this is a required student project and it is being conducted at the student's own
university medical center.
Yes, the student's project must undergo a full IRB review and approval.
Question 9
The mean is the number in the middle of the observations, when the observations are
arranged from smallest to largest.
True
False
Question 10
What is the median of the following set of numbers?
9, 1, 8, 5, 3, 10, 4, 12, 8, 7
5
6
7
7.
5
8
Question 11
The validity of a weight measurement obtained with an electronic scale refers to the
repeatability of the measurement.
True
False
Question 12
The operational definition of a variable
Explains what the variable means.
Specifies the precision of the
measurements.
Describes the validity of the variable.
Specifies how a variable should be
measured.
Question 13
In a box-and-whisker plot, the length of the box is equal to the
Midrange.
Epidemiological
range.
Statistical range.
Interquartile
range.
Question 14
A study can have only one dependent variable.
True
False
Question 15
A variable was coded as disease present, disease not present, or
disease status unknown. When performing the descriptive statistics, which
ofthat thesame measurement when the same variable is measured multiple times is an example following should be used? SELECT ALL THAT APPLY
of
Accuracy.
Validity.
Reliability.
All of the
above
Question 18
Quality of life is measured on a scale from 1 (extremely poor quality) to 5 (best possible
quality). The best graphic display of these measurements would be a
Bar chart.
Stem-and-leaf
plot.
Box-and-whisker
plot.
Histogram
.
.
.
.
.
.
.
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