Question 1

Distribution-free tests are

Accepted Answer

A)  more sensitive to the effects of outliers than parametric tests. 
B)  more sensitive to the effects of scores near the mean than parametric tests. 
C)  largely unaffected by the presence of outliers. 
D)  both a and c

Question 2

The Friedman test

Accepted Answer

A)  ranks the scores within each subject. 
B)  is appropriate when we have several repeated measures on each subject. 
C)  is largely insensitive to outliers. 
D)  all of the above

Question 3

Would you reject or retain the null hypothesis in a Wilcoxon's matched-pairs signed rank test given the following information and assuming a one-tailed test and α = .05: 
a. n = 5, T = 0 
b. n = 12, T = 19 
c. n = 28, T = 129

Accepted Answer

The answer of Would you reject or retain the null...

Question 4

When we speak about rank-randomization tests we are talking about procedures that

Accepted Answer

A)  deal with ranks. 
B)  ask how ranks would be distributed if the data were random. 
C)  form the basis of many distribution-free tests. 
D)  all of the above

Question 5

The ranks of these numbers: 1, 5, 2, 4, 5 are 1, 4.5, 2, 3, 4.5.

Accepted Answer

A) True 
 B)False

Exam 20: Nonparametric and Resampling Statistical Tests

Distribution-free tests are

The Friedman test

Would you reject or retain the null hypothesis in a Wilcoxon's matched-pairs signed rank test given the following information and assuming a one-tailed test and α = .05: a. n = 5, T = 0 b. n = 12, T = 19 c. n = 28, T = 129

When we speak about rank-randomization tests we are talking about procedures that

The ranks of these numbers: 1, 5, 2, 4, 5 are 1, 4.5, 2, 3, 4.5.