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Psychology
Research methods
Dispersion
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Created by
Laurafleetham
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Cards (7)
What are the measures of dispersion?
Range
Standard
deviation
What is the range?
The
difference
between the
highest
and
lowest
numbers
What are the strengths of the range?
Quick
and
easy
to calculate
What is the weakness of the range?
Affected by
outliers,
doesn’t take into account all the values
What is the standard deviation?
Tells us the average distance of each score from the mean
What are the strengths of standard deviation?
More precise measure of dispersion
What are the weaknesses of standard deviation?
Much harder to calculate than the range