Question 1

The value of a slope can be positive only.

Accepted Answer

A) True 
 B)False

Question 2

The problem of ____________________ occurs when only a limited portion of the possible range of scores is used to calculate a correlation coefficient and a regression equation.

Accepted Answer

The answer of The problem of ____________________ occurs when only...

Question 3

A positive slope indicates _________ between two variables.

Accepted Answer

A) a direct relationship 
B) an inverse relationship 
C) a nonlinear relationship 
D) no relationship 
A) a direct relationship 
B) an inverse relationship 
C) a nonlinear relationship 
D) no relationship

Question 4

In the behavioral sciences where complex behaviors are studied,correlations in the .20 to .30 range (and the -.20 to -.30 range)are usually considered to be unimportant.

Accepted Answer

A) True 
 B)False

Question 5

The standard error of estimate is a useful index of ______.

Accepted Answer

A) the (positive square root)average error across individuals 
B) the slope 
C) the rate of change of one variable compared to the other variable 
A) the (positive square root)average error across individuals 
B) the slope 
C) the rate of change of one variable compared to the other variable

Question 6

In the regression equation,  
= 3)36 + 1.23X,which value is the slope of the line?

Accepted Answer

A) 3.36 
B) X 
C) 1.23 
D) cannot be determined 
A) 3.36 
B) X 
C) 1.23 
D) cannot be determined

Question 7

The point at which a line intersects the Y axis when X = 0 is called the _____.

Accepted Answer

A) intercept 
B) slope 
C) abscissa 
D) a and c 
A) intercept 
B) slope 
C) abscissa 
D) a and c

Question 8

The Pearson correlation may be used to determine the _____.

Accepted Answer

A) relationship between two variables 
B) variability between x and y scores 
C) curvilinear relationship between x and y 
D) predictive error between two scores 
A) relationship between two variables 
B) variability between x and y scores 
C) curvilinear relationship between x and y 
D) predictive error between two scores

Question 9

In the case of a perfect negative linear relationship,the standard scores on X and Y will be identical.

Accepted Answer

A) True 
 B)False

Question 10

When scores on Y are predicted from scores on X using a regression equation,the amount of error for a given individual can be represented by the discrepancy between that person's:

Accepted Answer

A) actual and predicted Y scores 
B) actual and predicted X scores 
C) a and b 
D) neither a nor b 
A) actual and predicted Y scores 
B) actual and predicted X scores 
C) a and b 
D) neither a nor b

Question 11

A ____________________ is a graph that represents values for X and Y for each person in the data set.

Accepted Answer

The answer of A ____________________ is a graph that represents...

Question 12

In the study of traditionalism and ideal family size,a correlation of .66 was found indicating a ______.

Accepted Answer

A) strong positive relationship 
B) causal effect 
C) weak positive relationship 
D) strong causal effect 
A) strong positive relationship 
B) causal effect 
C) weak positive relationship 
D) strong causal effect

Question 13

Outliers are most likely to raise interpretational complexities when:

Accepted Answer

A) sample sizes are small 
B) sample sizes are large 
C) correlation coefficients are small 
D) correlation coefficients are large 
A) sample sizes are small 
B) sample sizes are large 
C) correlation coefficients are small 
D) correlation coefficients are large

Question 14

If X helps to predict Y,then the standard error of estimate will be smaller than the standard deviation of Y.

Accepted Answer

A) True 
 B)False

Question 15

An r value of .20 always indicates a small correlation between two variables in the behavioral science literature.

Accepted Answer

A) True 
 B)False

Question 16

When the correlation between two variables is nonzero,the value of the sum of z score products is influenced not only by the size of the correlation,but also by the sample size (N).

Accepted Answer

A) True 
 B)False

Question 17

The criterion for deriving the values of the slope and intercept in a linear regression problem is formally known as the:

Accepted Answer

A) maximum likelihood criterion 
B) oblique squares criterion 
C) least squares criterion 
D) sum of squares criterion 
A) maximum likelihood criterion 
B) oblique squares criterion 
C) least squares criterion 
D) sum of squares criterion

Question 18

In the case of a negative relationship,as scores on X _____,scores on Y _____.

Accepted Answer

A) increase;stay the same 
B) decrease;stay the same 
C) decrease;decrease 
D) increase;decrease 
A) increase;stay the same 
B) decrease;stay the same 
C) decrease;decrease 
D) increase;decrease

Question 19

The slope of a line indicates the number of units variable Y is predicted to change given a one unit change in X.

Accepted Answer

A) True 
 B)False

Question 20

Which of the following statements is true?

Accepted Answer

A) for a given set of X and Y scores there is more than one regression line when regressing Y onto X 
B) a minimum of two data points must fall directly on the regression line 
C) the equation for a regression line is defined by the slope and the intercept 
D) a regression line has at least two intercepts 
A) for a given set of X and Y scores there is more than one regression line when regressing Y onto X 
B) a minimum of two data points must fall directly on the regression line 
C) the equation for a regression line is defined by the slope and the intercept 
D) a regression line has at least two intercepts

The value of a slope can be positive only.

The problem of ____________________ occurs when only a limited portion of the possible range of scores is used to calculate a correlation coefficient and a regression equation.

A positive slope indicates _________ between two variables.

In the behavioral sciences where complex behaviors are studied,correlations in the .20 to .30 range (and the -.20 to -.30 range)are usually considered to be unimportant.

The standard error of estimate is a useful index of ______.

In the regression equation, = 3)36 + 1.23X,which value is the slope of the line?

The point at which a line intersects the Y axis when X = 0 is called the _____.

The Pearson correlation may be used to determine the _____.

In the case of a perfect negative linear relationship,the standard scores on X and Y will be identical.

When scores on Y are predicted from scores on X using a regression equation,the amount of error for a given individual can be represented by the discrepancy between that person's:

A ____________________ is a graph that represents values for X and Y for each person in the data set.

In the study of traditionalism and ideal family size,a correlation of .66 was found indicating a ______.

Outliers are most likely to raise interpretational complexities when:

If X helps to predict Y,then the standard error of estimate will be smaller than the standard deviation of Y.

An r value of .20 always indicates a small correlation between two variables in the behavioral science literature.

When the correlation between two variables is nonzero,the value of the sum of z score products is influenced not only by the size of the correlation,but also by the sample size (N).

The criterion for deriving the values of the slope and intercept in a linear regression problem is formally known as the:

In the case of a negative relationship,as scores on X _,scores on Y _.

The slope of a line indicates the number of units variable Y is predicted to change given a one unit change in X.

Which of the following statements is true?

Introduction and Mathematical Preliminaries

Frequency and Probability Distributions

Measures of Central Tendency and Variability

Percentiles,percentile Ranks,standard Scores,and the Normal Distribution

Probability

Estimation and Sampling Distributions

Hypothesis Testing: Inferences About a Single Mean

Principles of Research Design and Statistical Preliminaries for Analyzing Bivariate Relationships

Independent Groups T-Test

Correlated Groups T-Test

One-Way Repeated Measures Analysis of Variance

Pearson Correlation and Regression: Inferential Aspects

Chi-Square Test

Nonparametric Statistics

Two-Way Between-Subjects Analysis of Variance

Overview and Extension: Statistical Tests for More Complex Designs

Filters

Exam 5: Pearson Correlation and Regression: Descriptive Aspects

The value of a slope can be positive only.

The problem of ____________________ occurs when only a limited portion of the possible range of scores is used to calculate a correlation coefficient and a regression equation.

A positive slope indicates _________ between two variables.

In the behavioral sciences where complex behaviors are studied,correlations in the .20 to .30 range (and the -.20 to -.30 range)are usually considered to be unimportant.

The standard error of estimate is a useful index of ______.

In the regression equation, = 3)36 + 1.23X,which value is the slope of the line?

The point at which a line intersects the Y axis when X = 0 is called the _____.

The Pearson correlation may be used to determine the _____.

In the case of a perfect negative linear relationship,the standard scores on X and Y will be identical.

When scores on Y are predicted from scores on X using a regression equation,the amount of error for a given individual can be represented by the discrepancy between that person's:

A ____________________ is a graph that represents values for X and Y for each person in the data set.

In the study of traditionalism and ideal family size,a correlation of .66 was found indicating a ______.

Outliers are most likely to raise interpretational complexities when:

If X helps to predict Y,then the standard error of estimate will be smaller than the standard deviation of Y.

An r value of .20 always indicates a small correlation between two variables in the behavioral science literature.

When the correlation between two variables is nonzero,the value of the sum of z score products is influenced not only by the size of the correlation,but also by the sample size (N).

The criterion for deriving the values of the slope and intercept in a linear regression problem is formally known as the:

In the case of a negative relationship,as scores on X _____,scores on Y _____.

The slope of a line indicates the number of units variable Y is predicted to change given a one unit change in X.

Which of the following statements is true?

Introduction and Mathematical Preliminaries

Frequency and Probability Distributions

Measures of Central Tendency and Variability

Percentiles,percentile Ranks,standard Scores,and the Normal Distribution

Probability

Estimation and Sampling Distributions

Hypothesis Testing: Inferences About a Single Mean

Principles of Research Design and Statistical Preliminaries for Analyzing Bivariate Relationships

Independent Groups T-Test

Correlated Groups T-Test

One-Way Repeated Measures Analysis of Variance

Pearson Correlation and Regression: Inferential Aspects

Chi-Square Test

Nonparametric Statistics

Two-Way Between-Subjects Analysis of Variance

Overview and Extension: Statistical Tests for More Complex Designs

Filters

In the case of a negative relationship,as scores on X _,scores on Y _.