# Quiz 13: Investigating Relationships Between Two Variables

Political Science

Q 1Q 1

A measure of _________ describes in a single number or coefficient the kind and strength of relationship between the values of two variables.
A) Association
B) Variation
C) Causation
D) Regression

Free

Multiple Choice

A

Q 2Q 2

Which of the following best describes the relationship between two variables when high values of one variable are associated with high values of the other in which plotted X?Y points fall on a straight line.
A) Positive linear
B) Negative linear
C) Positive monotonic
D) Negative monotonic

Free

Multiple Choice

A

Q 3Q 3

A ____________ shows the joint or bivariate relationship between two categorized (nominal and/or ordinal) variables.
A) Regression
B) Standard error
C) Cross-tabulation
D) Confidence interval

Free

Multiple Choice

C

Q 4Q 4

In a measure of association for ordinal variables, a pair in which both observations have the same value on one or both variables is called a _____________ pair.
A) Discordant
B) Concordant
C) Tied
D) Jumbled

Free

Multiple Choice

Q 5Q 5

The difference between one mean and another is a(n) __________.
a. Lambda score
b. Association score
c. Inferential size
d. Effect size

Free

Essay

Q 6Q 6

Bounded measures of association like Pearson's r vary between ____ and _____.
A) 0 and 10
B) 1 and 1
C) 0 and 1
D) 10 and 10

Free

Multiple Choice

Q 7Q 7

Kendall's tau b, Kendall's tau c, Somer's d, and Goodman and Kruskal's gamma are all measures of ________________.
A) Regression
B) Standard error
C) Slope
D) Association

Free

Multiple Choice

Q 8Q 8

When the categories of the independent are arrayed across the top of the table-that is, they are the column labels-it is essential that the percentages add to ____ down the columns (these are known as column percentages).
A) 0
B) 1
C) 10
D) 100

Free

Multiple Choice

Q 9Q 9

Chi squared rapidly inflates with ___________ leading many analysts to use corrective measures like phi.
A) Increases in variability
B) Decreases in variability
C) Increases in sample size
D) Decreases in sample size

Free

Multiple Choice

Q 10Q 10

In a measure of association for ordinal variables, a pair in which one individual is higher on both variables than the other case is called a ____________ pair.
A) Discordant
B) Concordant
C) Tied
D) Jumbled

Free

Multiple Choice

Q 11Q 11

In a measure of association for ordinal variables, a pair in which one case is lower on one of the variables but higher on the other is called a _____________ pair.
A) Discordant
B) Concordant
C) Tied
D) Jumbled

Free

Multiple Choice

Q 12Q 12

You can create a ____________ variable by subtracting the mean from each value and dividing the remainder by the standard deviation.

Free

Short Answer

Free

Essay

Free

Short Answer

Free

Short Answer

Free

Essay

Free

Essay

Q 18Q 18

When using measures of association it is common to discuss the strength of the association. What is meant by the strength of an association?

Free

Essay

Free

Essay

Free

Essay

Q 21Q 21

Why is cross-tabulation an appropriate choice for analyzing two variables when both are nominal or ordinal measures but not when one or both are interval or ratio measures?

Free

Essay

Free

Essay

Q 23Q 23

When the difference of the means is larger, or smaller, what are the implications for tests of statistical significance?

Free

Essay

Q 24Q 24

How does a regression give us the "best fit" line to summarize the relationship between two variables?

Free

Essay

Free

Essay