Question 1

A scatterplot primarily is intended to show

Accepted Answer

A) the relationship between X and Y scores. 
B) the frequencies of X and Y scores. 
C) the correlation of X scores. 
D) the correlation of Y scores. 
A) the relationship between X and Y scores. 
B) the frequencies of X and Y scores. 
C) the correlation of X scores. 
D) the correlation of Y scores.

Question 2

An inverse relationship and a ____________________ relationship are the same thing.

Accepted Answer

The answer of An inverse relationship and a ____________________ relationship...

Question 3

The correlation coefficient can range from -1.00 to 0 to +1.00.

Accepted Answer

A) True 
 B)False

Question 4

In the regression equation,  
= 3)36 + 1.23X,which value is the y-intercept 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 5

The defining characteristic of the regression line is that

Accepted Answer

A) it is the line that is based on the sums of squares criterion 
B) it is the line that passes through each data point in the scatterplot 
C) it simultaneously calculates the all possible data points in the scatterplot 
D) it simultaneously minimizes the distances of all data points from the line 
A) it is the line that is based on the sums of squares criterion 
B) it is the line that passes through each data point in the scatterplot 
C) it simultaneously calculates the all possible data points in the scatterplot 
D) it simultaneously minimizes the distances of all data points from the line

Question 6

When two variables,X and Y,are correlated,it is possible that:

Accepted Answer

A) X causes Y 
B) Y causes X 
C) some other variable causes both X and Y 
D) all of these 
A) X causes Y 
B) Y causes X 
C) some other variable causes both X and Y 
D) all of these

Question 7

If the values of the variables X and Y are directly related,then as a score in X _____ the value of a score in Y _____.

Accepted Answer

A) increase;increases 
B) increases;decreases 
C) decreases;increases 
D) none of these 
A) increase;increases 
B) increases;decreases 
C) decreases;increases 
D) none of these

Question 8

If grade point average (GPA)and number of hours partying were related according to the following linear model: GPA= 4.00 - .40 Hours,what GPA would you predict if you partied for 8 hours?

Accepted Answer

A) .80 
B) 2.20 
C) 1.00 
D) 3.60 
A) .80 
B) 2.20 
C) 1.00 
D) 3.60

Question 9

The sign of the correlation coefficient indicates the magnitude of the linear approximation.

Accepted Answer

A) True 
 B)False

Question 10

In the case of a positive or direct relationship between X and Y,as scores on X increase,scores on Y increase.

Accepted Answer

A) True 
 B)False

Question 11

The sum of the cross-products indicates the extent to which two sets of scores _____.

Accepted Answer

A) vary from their mean 
B) vary from the grand mean 
C) covary 
D) depart from individual variation 
A) vary from their mean 
B) vary from the grand mean 
C) covary 
D) depart from individual variation

Question 12

Correlations for the types of variables typically studied by behavioral scientists will seldom exceed -.40 or +.40 and will often be considerably smaller.

Accepted Answer

A) True 
 B)False

Question 13

When a linear relationship is negative,

Accepted Answer

A) the z scores on X will be different in size from the z scores on Y,but they will tend to be alike in sign. 
B) the z scores on X will be different in size from the z scores on Y,but they will tend to be opposite in sign. 
C) the z scores on X will tend to be similar to the z scores on Y,and they will tend to be alike in sign. 
D) the z scores on X will tend to be similar to the z scores on Y,but they will tend to be opposite in sign. 
A) the z scores on X will be different in size from the z scores on Y,but they will tend to be alike in sign. 
B) the z scores on X will be different in size from the z scores on Y,but they will tend to be opposite in sign. 
C) the z scores on X will tend to be similar to the z scores on Y,and they will tend to be alike in sign. 
D) the z scores on X will tend to be similar to the z scores on Y,but they will tend to be opposite in sign.

Question 14

A single case that can drastically change a correlation coefficient is called an ____________________.

Accepted Answer

The answer of A single case that can drastically change...

Question 15

It is common in the behavioral sciences to observe a perfect linear relationship between two variables.

Accepted Answer

A) True 
 B)False

Question 16

The statistical technique of _____ can be used to identify a line that will fit the data points better than any other line,as determined by the _____.

Accepted Answer

A) correlation;least squares criterion 
B) regression;least squares criterion 
C) correlation;standard error of the estimate 
D) regression;standard error of the estimate 
A) correlation;least squares criterion 
B) regression;least squares criterion 
C) correlation;standard error of the estimate 
D) regression;standard error of the estimate

Question 17

When a regression equation is computed using standardized X and Y scores,the slope will always equal 0.

Accepted Answer

A) True 
 B)False

Question 18

When two variables are not perfectly correlated,the statistical technique of regression can be used to identify a line that will fit the data points perfectly.

Accepted Answer

A) True 
 B)False

Question 19

The criterion for deriving the values of the slope and intercept in a linear regression equation 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 20

Correlational analysis frequently demonstrates how one variable ______.

Accepted Answer

A) causes the value of the other variable 
B) is caused by the value of the other variable 
C) is caused by a third variable 
D) may be related to another variable 
A) causes the value of the other variable 
B) is caused by the value of the other variable 
C) is caused by a third variable 
D) may be related to another variable

A scatterplot primarily is intended to show

An inverse relationship and a ____________________ relationship are the same thing.

The correlation coefficient can range from -1.00 to 0 to +1.00.

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

The defining characteristic of the regression line is that

When two variables,X and Y,are correlated,it is possible that:

If the values of the variables X and Y are directly related,then as a score in X _ the value of a score in Y _.

If grade point average (GPA)and number of hours partying were related according to the following linear model: GPA= 4.00 - .40 Hours,what GPA would you predict if you partied for 8 hours?

The sign of the correlation coefficient indicates the magnitude of the linear approximation.

In the case of a positive or direct relationship between X and Y,as scores on X increase,scores on Y increase.

The sum of the cross-products indicates the extent to which two sets of scores _____.

Correlations for the types of variables typically studied by behavioral scientists will seldom exceed -.40 or +.40 and will often be considerably smaller.

When a linear relationship is negative,

A single case that can drastically change a correlation coefficient is called an ____________________.

It is common in the behavioral sciences to observe a perfect linear relationship between two variables.

The statistical technique of _ can be used to identify a line that will fit the data points better than any other line,as determined by the _.

When a regression equation is computed using standardized X and Y scores,the slope will always equal 0.

When two variables are not perfectly correlated,the statistical technique of regression can be used to identify a line that will fit the data points perfectly.

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

Correlational analysis frequently demonstrates how one variable ______.

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

A scatterplot primarily is intended to show

An inverse relationship and a ____________________ relationship are the same thing.

The correlation coefficient can range from -1.00 to 0 to +1.00.

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

The defining characteristic of the regression line is that

When two variables,X and Y,are correlated,it is possible that:

If the values of the variables X and Y are directly related,then as a score in X _____ the value of a score in Y _____.

If grade point average (GPA)and number of hours partying were related according to the following linear model: GPA= 4.00 - .40 Hours,what GPA would you predict if you partied for 8 hours?

The sign of the correlation coefficient indicates the magnitude of the linear approximation.

In the case of a positive or direct relationship between X and Y,as scores on X increase,scores on Y increase.

The sum of the cross-products indicates the extent to which two sets of scores _____.

Correlations for the types of variables typically studied by behavioral scientists will seldom exceed -.40 or +.40 and will often be considerably smaller.

When a linear relationship is negative,

A single case that can drastically change a correlation coefficient is called an ____________________.

It is common in the behavioral sciences to observe a perfect linear relationship between two variables.

The statistical technique of _____ can be used to identify a line that will fit the data points better than any other line,as determined by the _____.

When a regression equation is computed using standardized X and Y scores,the slope will always equal 0.

When two variables are not perfectly correlated,the statistical technique of regression can be used to identify a line that will fit the data points perfectly.

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

Correlational analysis frequently demonstrates how one variable ______.

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

If the values of the variables X and Y are directly related,then as a score in X _ the value of a score in Y _.

The statistical technique of _ can be used to identify a line that will fit the data points better than any other line,as determined by the _.