Deck 23: Ordinal Level Tests of Association

Question 1

Somers' d is actually created from another statistic; that statistic is:

A)Pearson's r
B)Gamma
C)Uncertainty Coefficient (U)
D)Phi

Answer 1

B

Question 2

In general,ordinal measures of association tend to provide an inaccurate estimate of the real relationship when:

A)the sample size is very large
B)the data are measured at the ordinal level
C)there are many ties in the data
D)all of the above

Answer 2

C

Question 3

While the Gamma statistic has other problems,which of the answers below is an advantage of Gamma:

A)expressly designed for 2 X 2 tables
B)it uses interval level data
C)it calculates asymmetric relationships
D)it has a PRE interpretation

Answer 3

D

Question 4

Which of the following is the best interpretation of a significant Somers' d with a value of .30?

A)9% of the variance in the dependent variable is explained
B)9% of the variance in the independent variable is explained
C)15% of the variance in the independent variable is explained
D)30% of the variance in the dependent variable is explained