# Descriptive Data Analysis: Question Preview (ID: 9135)

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What do you call a body of mathematical techniques or processes for gathering, organizing, analyzing and interpreting numerical data?
a) statistics
b) reliability
c) correlation
d) validity

Which type of tests are sometimes known as distribution free tests and do not rest on the assumption of normally distributed populations?
a) Parametric tests
b) Ratio-scaled tests
c) Nonparametric tests
d)

True or False: Descriptive statistical analysis limits generalization to the particular group individuals observed.
a) True
b) False
c)
d)

Which measure of spread or dispersion is simply the difference between the highest and lowest scores?
a) variance
b) standard deviation
c) range
d) mean

What is the mode of this distribution: 1,4,4,6,3,1,4,6?
a) 6
b) 4
c) 1
d) 5

Would a person's intelligence tend to be positively or negatively correlated to his or her academic achievement?
a) Positively
b) Negatively
c)
d)

A stanine is a standard score that divides the normal curve into how many parts?
a) ten
b) nine
c) five
d) two

Which is the term that refers to the scores of individuals that do not seem to fit in with the rest of the sample due to their extreme nature?
b) coefficients
c) outliers
d)

True or False: A test is said to be reliable to the degree that it measures accurately and consistently, yielding comparable results when administered a number of times.
a) true
b) false
c)
d)

Do you agree or disagree with this statement: Statistics is a means, never an end, of research?
a) Agree
b) Disagree
c)
d)

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