Question

QUESTION 10

A graphical display where the independent variable is measured along the horizontal axis and the dependent variable is measured along the vertical axis is called a ______.

A.scatterplot

B.line graph

C.bar graph

D.pie chart

QUESTION 11

1. The regression coefficient is also known as the ______.

A.correlation coefficient

B.slope of the line

C.test value

D.R2

QUESTION 12

A researcher conducting a study of turnout in the fifty states finds a regression coefficient of .35. This tells the researcher that ______.

A.turnout increases by .35 for each year a person ages

B.turnout increases by .35 for each one unit decrease in the independent variable

C.turnout decreases by .35 for each one unit increase in the independent variable

D.turnout increases by .35 for each one unit increase in the independent variable

QUESTION 13

1. R2 always has a value between ______.

A.0 and 1

B.–1 and 0

C.–1 and 1

D.1 and 2

QUESTION 14

1. A researcher wants to estimate voter turnout for different regions of the country. She divides the country into four regions. How many dummy variables will she have in the equation?

A.3

B.4

C.1

D.2

QUESTION 15

1. One reason to perform multiple regression analysis is to ______ for the effects of additional independent variables.

A.control

B.eliminate

C.alleviate

D.minimize

QUESTION 16

1. Multiple regression analysis produces a ______ for each independent variable in the model.

A.partial χ2

B.partial correlation coefficient

C.partial regression coefficient

D.partial adjusted R-square

QUESTION 17

1. Multiple regression is both ______ and ______.

A.linear; spurious

B.linear; regressive

C.linear; additive

D.linear; interactive

QUESTION 18

1. Which of the following formalizes the intuitive judgment made about the direction and strength of a relationship?

A.Pearson’s r

B.Pearson’s correlation coefficient

C.χ2

D.regression coefficient

QUESTION 19

1. If no relationship exists between variables, Pearson’s r takes on the value of ______.

A.0

B.+1

C.–1

D.no value

QUESTION 20

A bivariate analysis is used to analyze the relationship between a(n) ______.

A.ordinal-level dependent variable and any independent

variable at any level

B.interval-level dependent variable and any independent variable at any level

C.ratio-level dependent variable and any independent variable at any level

D.nominal-level dependent variable and any independent variable at any level

Answer 1