Chapter 6: Non Parametric Tests Flashcards

1
Q

Kolmogorov-Smirnov Z

A

tests whether two groups have been drawn from the same population.

has better power than the Mann-Whitney when samples are less than 25 per group

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Kruskal Wallis Test

A

tests the hypothesis that multiple independent groups come from different populations

compares >2 independent groups of scores

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Mann-Whitney

A
  • looks for differences between two independent samples
  • tests whether the populations from which two samples are drawn have the same location
  • equivalent to the independent t-test
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Median Test

A

tests whether the samples are drawn from a population with the same median

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Non-Parametric Tests

A

used to test hypotheses that don’t make many of the assumptions we have seen
AKA “assumption free tests”

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Pairwise Comparisons

A

compare all pairs of group means

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Ranking

A

how scores overcome the problem of the shape of the distribution
done by giving the lowest score a 1, the nest lowest a 2, etc.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Sign Test

A

based only on the direction of difference (positive or negative)
magnitude of change is completely ignored
lacks power unless sample sizes are very small (6 or less)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Wilcoxon Rank-Sum Test

A

looks for differences between 2 independent samples
tests whether the population from which two samples are drawn have the same location
equivalent of the independent t-test

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Wilcoxon Signed Rank Test

A
  • looks for a difference between two related samples
  • used when there are two sets of scores to compare, but the scores come from the same participants
  • equivalent of the related t-test
How well did you know this?
1
Not at all
2
3
4
5
Perfectly