Slide 1

Quiz 12
 Nonparametric statistics


Slide 2

1. Which condition is not
required to perform a nonparametric test?
a) random sampling of population
b) data are normally distributed
c)


Slide 3

2. Which condition is not
necessary before conducting an
nonparametric test?
a) data must be normally distributed
or nearly
b) groups must be independent
c) data must come from random
sampling


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3. What is the significant correlation
for a Spearman Rank r for a=0.05
and 20 pairs of values?
a) 0.438
b) 0.450
c) 0.462
d) 0.377


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4. Which is the correct test to use when
you want to compare three groups of
different participants and the data are not
normally distributed data?
a) Kruskall-Wallis
b) t-test for independent groups
c) analysis of variance
d) test of independence


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5.
a) area under curve is equal to one
b) distribution is symmetrical
c) is skewed positively
d) it is asymptotic to the right


Slide 7

6.
a) there is at least one significantly
different group
b) all groups are significantly different
c) all groups have equal means


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7. Which post hoc test is the
most conservative and has the
least power?
a) Scheffé
b) Tukey HSD
c) Bonferroni
d) Dunnett’s multiple range


Slide 9

8. Given the following SPSS output
which is the correct conclusion?
a) E different from VG
b) no differences
c) E different from G
d) VG different from G