NSG-522 MIDTERM QUESTIONS AND ANSWERS
The frequency and relative frequency presented as a percentage should both be reported when
describing interval level data - (ANSWER)False
What type of graphic display would be the best for a variable measured at the ordinal data? -
(ANSWER)Histogram
The operational definition of a variable - (ANSWER)Specifies how a variable should be measured
The epidemiological range is - (ANSWER)the minimum and maximum values
When reporting the mean for a variable, what measure of spread should be reported? - (ANSWER)The
standard deviation
clinical data conducted can be shared to a cloud for all involved researchers to share/view -
(ANSWER)false
The dependent variable - (ANSWER)the outcome variable
Outliers can be identified using a (SELECT ALL THAT APPLY)
a. Box-and-whisker plot with Tukey Fences.
b. Histogram.
d. Stem-and-leaf plot.
e. Bar chart.
f. Any/all of the above - (ANSWER)A. Box and whisker plot with Turkey fences
The most frequently occurring number in a set of numbers is the
a. Median
b. Mode.
c. Midrange
,NSG-522 MIDTERM QUESTIONS AND ANSWERS
d. Frequency
e. 50th percentile - (ANSWER)b. mode
The decision to use the mean or median is based upon (Select all that apply)
A. Whether the data are normally distributed
b. Which statistical tests will be used for hypothesis testing
c. The presence or absence of outliers
d. The guidelines of the journal where the data will be published - (ANSWER)A. Whether the data are
normally distributed
B. The presence or absence of outliers
When a continuous variable has a normal distribution and only 1 small outlier, the mean and standard
deviation should be used to describe the variable - (ANSWER)False
Match the following variables to the correct level of measurement (A. Interval, B. Nominal, C. Ratio, D.
Ordinal)
Temperature in Fahrenheit
Presence or Absence of disease
Weight in ounces
Race
Quality of life (1-5)
Hemoglobin A1C
Time in Minutes
Level of education
Oxygen Saturation
Blood type - (ANSWER)Temperature in Fahrenheit- A. Interval
Presence or Absence of disease- B. Nominal
Weight in ounces- C. Ration
, NSG-522 MIDTERM QUESTIONS AND ANSWERS
Race- B. Nominal
Quality of life (1-5)- D. Ordinal
Hemoglobin A1C- C. Ratio
Time in Minutes- C. Ratio
Level of education- D. Ordinal
Oxygen Saturation- C. Ratio
Blood type- B. Nominal
A conceptual definition defines how a variable will be measured, and includes the equipment and
procedures that are used in the measurement - (ANSWER)False
Testing a new piece of equipment to ensure that the equipment consistently provides that same
measurement when the same variable is measured multiple times is an example of
Accuracy
Validity
Reliability
All of the above - (ANSWER)Reliability
Bar charts and histograms can both be used to describe interval level data - (ANSWER)False
All studies need appropriate permission to examine data - (ANSWER)True
The mean is the number in the middle of the observations, when the observations are arranged from
smallest to largest. - (ANSWER)False
The best way to determine whether data are normally distributed is to
A. Construct a box and whisker plot with turkey fences
B. Construct a histogram
The frequency and relative frequency presented as a percentage should both be reported when
describing interval level data - (ANSWER)False
What type of graphic display would be the best for a variable measured at the ordinal data? -
(ANSWER)Histogram
The operational definition of a variable - (ANSWER)Specifies how a variable should be measured
The epidemiological range is - (ANSWER)the minimum and maximum values
When reporting the mean for a variable, what measure of spread should be reported? - (ANSWER)The
standard deviation
clinical data conducted can be shared to a cloud for all involved researchers to share/view -
(ANSWER)false
The dependent variable - (ANSWER)the outcome variable
Outliers can be identified using a (SELECT ALL THAT APPLY)
a. Box-and-whisker plot with Tukey Fences.
b. Histogram.
d. Stem-and-leaf plot.
e. Bar chart.
f. Any/all of the above - (ANSWER)A. Box and whisker plot with Turkey fences
The most frequently occurring number in a set of numbers is the
a. Median
b. Mode.
c. Midrange
,NSG-522 MIDTERM QUESTIONS AND ANSWERS
d. Frequency
e. 50th percentile - (ANSWER)b. mode
The decision to use the mean or median is based upon (Select all that apply)
A. Whether the data are normally distributed
b. Which statistical tests will be used for hypothesis testing
c. The presence or absence of outliers
d. The guidelines of the journal where the data will be published - (ANSWER)A. Whether the data are
normally distributed
B. The presence or absence of outliers
When a continuous variable has a normal distribution and only 1 small outlier, the mean and standard
deviation should be used to describe the variable - (ANSWER)False
Match the following variables to the correct level of measurement (A. Interval, B. Nominal, C. Ratio, D.
Ordinal)
Temperature in Fahrenheit
Presence or Absence of disease
Weight in ounces
Race
Quality of life (1-5)
Hemoglobin A1C
Time in Minutes
Level of education
Oxygen Saturation
Blood type - (ANSWER)Temperature in Fahrenheit- A. Interval
Presence or Absence of disease- B. Nominal
Weight in ounces- C. Ration
, NSG-522 MIDTERM QUESTIONS AND ANSWERS
Race- B. Nominal
Quality of life (1-5)- D. Ordinal
Hemoglobin A1C- C. Ratio
Time in Minutes- C. Ratio
Level of education- D. Ordinal
Oxygen Saturation- C. Ratio
Blood type- B. Nominal
A conceptual definition defines how a variable will be measured, and includes the equipment and
procedures that are used in the measurement - (ANSWER)False
Testing a new piece of equipment to ensure that the equipment consistently provides that same
measurement when the same variable is measured multiple times is an example of
Accuracy
Validity
Reliability
All of the above - (ANSWER)Reliability
Bar charts and histograms can both be used to describe interval level data - (ANSWER)False
All studies need appropriate permission to examine data - (ANSWER)True
The mean is the number in the middle of the observations, when the observations are arranged from
smallest to largest. - (ANSWER)False
The best way to determine whether data are normally distributed is to
A. Construct a box and whisker plot with turkey fences
B. Construct a histogram
