Module 3 Apply your knowledge
What type of graphic display would be the best for a variable measured at the ordinal
level? - 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
The frequency and relative frequency presented as a percentage should both be
reported when describing interval level data. - answer False
When reporting the mean for a variable, what measure of spread should be reported? -
answer The standard deviation
The best place to store data from a clinical project conducted by 2 students and their
advisor would be in a cloud-based system such as Google docs so that all team
members can easily access the data and be sure that they are using the most current
version of the data. - answerFalse
The dependent variable is - answerThe outcome variable
Outliers can be the best identified using a: - answerBox-and-whisker plot with Tukey
fences
The most frequently occurring number in a set of numbers is the - answerMode
The decision to use the mean or median is based upon: (SELECT ALL THAT APPLY)
a. The presence or absence of outliers.
b. The guidelines of the journal where the data will be published.
c. Which statistical tests will be used for hypothesis testing.
d. Whether the data are normally distributed. - answera. The presence or absence of
outliers.
d. Whether the data are normally distributed
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 - answerFalse
Match the following variables to the correct level of measurement (nominal, ordinal,
interval, ratio)
Disease status (present or absent)
Temperature in Fahrenheit
Blood type
What type of graphic display would be the best for a variable measured at the ordinal
level? - 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
The frequency and relative frequency presented as a percentage should both be
reported when describing interval level data. - answer False
When reporting the mean for a variable, what measure of spread should be reported? -
answer The standard deviation
The best place to store data from a clinical project conducted by 2 students and their
advisor would be in a cloud-based system such as Google docs so that all team
members can easily access the data and be sure that they are using the most current
version of the data. - answerFalse
The dependent variable is - answerThe outcome variable
Outliers can be the best identified using a: - answerBox-and-whisker plot with Tukey
fences
The most frequently occurring number in a set of numbers is the - answerMode
The decision to use the mean or median is based upon: (SELECT ALL THAT APPLY)
a. The presence or absence of outliers.
b. The guidelines of the journal where the data will be published.
c. Which statistical tests will be used for hypothesis testing.
d. Whether the data are normally distributed. - answera. The presence or absence of
outliers.
d. Whether the data are normally distributed
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 - answerFalse
Match the following variables to the correct level of measurement (nominal, ordinal,
interval, ratio)
Disease status (present or absent)
Temperature in Fahrenheit
Blood type
