Question 1

What information does a multiple correlation coefficient provide?

Accepted Answer

A multiple correlation, which is technic

Question 2

If the value of the multiple correlation coefficient is .40, what is the value of the coefficient of determination (R2)?

Accepted Answer

A)  .16 
B)  .40 
C)  .60 
D)  4.00 
A)  .16 
B)  .40 
C)  .60 
D)  4.00

Question 3

For each of the following cases, the case's actual value on the dependent variable is shown along with the case's predicted value on the dependent variable based on a regression equation. For each case, what is the value of the regression residual?

Accepted Answer

case 1: 25

Question 4

If R2 for a regression equation is .30, how much of the variability in the dependent variable is NOT accounted for by the independent variables? __________

Accepted Answer

Question 5

The Pearson's r for variables D and E is .00. Cases which have a high value on D are

Accepted Answer

A)  likely to have a low value on E 
B)  likely to have a high value on E 
C)  equally likely to have a high or low value on E 
A)  likely to have a low value on E 
B)  likely to have a high value on E 
C)  equally likely to have a high or low value on E

Question 6

The multiple correlation coefficient (R) indicates _____ of the relationship between the dependent variable and the set of independent variables.

Accepted Answer

A)  the direction but not strength 
B)  the strength but not direction 
C)  the strength and direction 
D)  neither the strength nor the direction 
A)  the direction but not strength 
B)  the strength but not direction 
C)  the strength and direction 
D)  neither the strength nor the direction

Question 7

How does a scatterplot indicate the direction of the relationship between two variables?

Accepted Answer

If the points toward the right in the sc

Question 8

Pearson's r is the appropriate measure of association for a pair of variables if

Accepted Answer

A)  at least one variable is nominal 
B)  at least one variable is ordinal 
C)  one and only one variable is interval/ratio 
D)  both variables are interval/ratio 
A)  at least one variable is nominal 
B)  at least one variable is ordinal 
C)  one and only one variable is interval/ratio 
D)  both variables are interval/ratio

Question 9

What does a positive regression residual mean?

Accepted Answer

A)  The two variables have a positive correlation. 
B)  That a case's actual value on the dependent variable is exactly what was predicted by the regression equation. 
C)  That a case's actual value on the dependent variable is greater than what was predicted by the regression equation. 
D)  The slope of the best-fitting straight line is positive. 
A)  The two variables have a positive correlation. 
B)  That a case's actual value on the dependent variable is exactly what was predicted by the regression equation. 
C)  That a case's actual value on the dependent variable is greater than what was predicted by the regression equation. 
D)  The slope of the best-fitting straight line is positive.

Question 10

An analyst is interested in the relationship between number of children a person has (the independent variable) and exam grade (the dependent variable). She regresses exam grade on number of children. The equation for the best-fitting straight line is
GRADE = 75 + 5(CHILDREN)
A) For every additional child, what happens to the predicted grade? (State both the amount of change and the direction.)
B) One student has three children. What was that student's predicted grade?
C) If one student has 0 children and received a grade of 90, what was that student's regression residual?
D) Does the best fitting straight line through the scatterplot rise or fall as it moves to the right? (rise or fall)

Accepted Answer

a. increas

Question 11

Number of children is regressed on years of schooling. The unstandardized regression coefficient for years of schooling is .125. Do persons with more years of schooling have more, less, or the same number of children as persons with fewer years of schooling?

Accepted Answer

A)  more 
B)  less 
C)  the same 
A)  more 
B)  less 
C)  the same

Question 12

The best way to visually portray the relationship between two interval/ratio, continuous variables is with a

Accepted Answer

A)  clustered bar chart 
B)  histogram 
C)  pie chart 
D)  scatterplot 
A)  clustered bar chart 
B)  histogram 
C)  pie chart 
D)  scatterplot

Question 13

Which of the following is most appropriate for measuring the relationship between an ordinal variable and an interval/ratio variable?

Accepted Answer

A)  Cramer's V 
B)  Kendall's tau-b 
C)  Pearson's r 
D)  uncertainty coefficient 
A)  Cramer's V 
B)  Kendall's tau-b 
C)  Pearson's r 
D)  uncertainty coefficient

Question 14

What information does an unstandardized coefficient provide?

Accepted Answer

An unstandardized coefficient

Question 15

The Pearson's r for variables D and E is −.88. Cases which have a low value on D are

Accepted Answer

A)  likely to have a low value on E 
B)  likely to have a high value on E 
C)  equally likely to have a high or low value on E 
A)  likely to have a low value on E 
B)  likely to have a high value on E 
C)  equally likely to have a high or low value on E

Question 16

Answer the questions that follow this SPSS output: 
 
A) Describe the strength and the direction of the correlation between EDUC and INCOME. Also report the actual value of the correlation.
B) Which pair of variables has the weakest correlation in the table? __________ and __________

Accepted Answer

a. moderat

Question 17

Which of the following Pearson's r coefficients indicates the strongest relationship?

Accepted Answer

A)  -0.90 
B)  -0.55 
C)  0.45 
D)  1.00 
A)  -0.90 
B)  -0.55 
C)  0.45 
D)  1.00

Question 18

If the coefficient of determination for a regression equation is .25, what is the value of the coefficient of alienation? __________

Accepted Answer

The answer of If the coefficient of determination for a...

Question 19

For each of the following cases, the case's actual value on the dependent variable is shown along with the case's predicted value on the dependent variable based on a regression equation. For each case, what is the value of the regression residual?

Accepted Answer

case 1: 0

Question 20

If the correlation between a nation's population size and its economic standard of living is −.86, then

Accepted Answer

A)  Larger nations tend to be economically richer 
B)  Larger nations tend to be economically poorer. 
C)  Population size is not related to economic standard of living. 
D)  Population size accounts for 86% of a nation's economic standard of living. 
A)  Larger nations tend to be economically richer 
B)  Larger nations tend to be economically poorer. 
C)  Population size is not related to economic standard of living. 
D)  Population size accounts for 86% of a nation's economic standard of living.

What information does a multiple correlation coefficient provide?

If the value of the multiple correlation coefficient is .40, what is the value of the coefficient of determination (R²)?

For each of the following cases, the case's actual value on the dependent variable is shown along with the case's predicted value on the dependent variable based on a regression equation. For each case, what is the value of the regression residual?

If R² for a regression equation is .30, how much of the variability in the dependent variable is NOT accounted for by the independent variables? __________

The Pearson's r for variables D and E is .00. Cases which have a high value on D are

The multiple correlation coefficient (R) indicates _____ of the relationship between the dependent variable and the set of independent variables.

How does a scatterplot indicate the direction of the relationship between two variables?

Pearson's r is the appropriate measure of association for a pair of variables if

What does a positive regression residual mean?

Number of children is regressed on years of schooling. The unstandardized regression coefficient for years of schooling is .125. Do persons with more years of schooling have more, less, or the same number of children as persons with fewer years of schooling?

The best way to visually portray the relationship between two interval/ratio, continuous variables is with a

Which of the following is most appropriate for measuring the relationship between an ordinal variable and an interval/ratio variable?

What information does an unstandardized coefficient provide?

The Pearson's r for variables D and E is −.88. Cases which have a low value on D are

Answer the questions that follow this SPSS output: A) Describe the strength and the direction of the correlation between EDUC and INCOME. Also report the actual value of the correlation. B) Which pair of variables has the weakest correlation in the table? and

Which of the following Pearson's r coefficients indicates the strongest relationship?

If the coefficient of determination for a regression equation is .25, what is the value of the coefficient of alienation? __________

For each of the following cases, the case's actual value on the dependent variable is shown along with the case's predicted value on the dependent variable based on a regression equation. For each case, what is the value of the regression residual?

If the correlation between a nation's population size and its economic standard of living is −.86, then

Introduction

Data Sets

Frequency Tables and Univariate Charts

Central Tendency and Dispersion

Creating New Variables

Comparing Group Means

Crosstab Tables

Nominal and Ordinal Measures of Association

Multiple Regression

Sampling Distributions and Normal Distributions

Hypothesis Testing and One-Sample T Tests

Paired and Independent-Samples T Tests

Analysis of Variance

Chi-Square

Hypothesis Testing With Measures of Association and Regression

Filters

Exam 9: Pearsons Correlation and Bivariate Regression

What information does a multiple correlation coefficient provide?

If the value of the multiple correlation coefficient is .40, what is the value of the coefficient of determination (R2)?

For each of the following cases, the case's actual value on the dependent variable is shown along with the case's predicted value on the dependent variable based on a regression equation. For each case, what is the value of the regression residual?

If R2 for a regression equation is .30, how much of the variability in the dependent variable is NOT accounted for by the independent variables? __________

The Pearson's r for variables D and E is .00. Cases which have a high value on D are

The multiple correlation coefficient (R) indicates _____ of the relationship between the dependent variable and the set of independent variables.

How does a scatterplot indicate the direction of the relationship between two variables?

Pearson's r is the appropriate measure of association for a pair of variables if

What does a positive regression residual mean?

Number of children is regressed on years of schooling. The unstandardized regression coefficient for years of schooling is .125. Do persons with more years of schooling have more, less, or the same number of children as persons with fewer years of schooling?

The best way to visually portray the relationship between two interval/ratio, continuous variables is with a

Which of the following is most appropriate for measuring the relationship between an ordinal variable and an interval/ratio variable?

What information does an unstandardized coefficient provide?

The Pearson's r for variables D and E is −.88. Cases which have a low value on D are

Answer the questions that follow this SPSS output: A) Describe the strength and the direction of the correlation between EDUC and INCOME. Also report the actual value of the correlation. B) Which pair of variables has the weakest correlation in the table? __________ and __________

Which of the following Pearson's r coefficients indicates the strongest relationship?

If the coefficient of determination for a regression equation is .25, what is the value of the coefficient of alienation? __________

For each of the following cases, the case's actual value on the dependent variable is shown along with the case's predicted value on the dependent variable based on a regression equation. For each case, what is the value of the regression residual?

If the correlation between a nation's population size and its economic standard of living is −.86, then

Introduction

Data Sets

Frequency Tables and Univariate Charts

Central Tendency and Dispersion

Creating New Variables

Comparing Group Means

Crosstab Tables

Nominal and Ordinal Measures of Association

Multiple Regression

Sampling Distributions and Normal Distributions

Hypothesis Testing and One-Sample T Tests

Paired and Independent-Samples T Tests

Analysis of Variance

Chi-Square

Hypothesis Testing With Measures of Association and Regression

Filters

If the value of the multiple correlation coefficient is .40, what is the value of the coefficient of determination (R²)?

If R² for a regression equation is .30, how much of the variability in the dependent variable is NOT accounted for by the independent variables? __________

Answer the questions that follow this SPSS output: A) Describe the strength and the direction of the correlation between EDUC and INCOME. Also report the actual value of the correlation. B) Which pair of variables has the weakest correlation in the table? and