Question 1

What is a predicted value of Y?

Accepted Answer

A predicted value of Y is the

Question 2

The point at which a line intersects the Y axis when X = 1.0 is called the intercept.

Accepted Answer

A) True 
 B)False

Question 3

Refer to the following data set.  
What is the correlation between X and Y?

Accepted Answer

A) .09 
B) .92 
C) .80 
D) -.80 
A) .09 
B) .92 
C) .80 
D) -.80

Question 4

If X helps to predict Y,then the _____ will be smaller than the _____.

Accepted Answer

A) standard deviation of Y;standard estimate of error 
B) standard error of estimate;sum of squares for Y 
C) standard estimate of error;standard deviation of X 
D) standard error of estimate;standard deviation of Y 
A) standard deviation of Y;standard estimate of error 
B) standard error of estimate;sum of squares for Y 
C) standard estimate of error;standard deviation of X 
D) standard error of estimate;standard deviation of Y

Question 5

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 6

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 7

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 8

In a scatterplot,the X variable should be plotted on the _____,and the Y variable should be plotted on the _____.

Accepted Answer

A) ordinate;abscissa 
B) abscissa;ordinate 
C) y-intercept;slope 
D) function;abscissa 
A) ordinate;abscissa 
B) abscissa;ordinate 
C) y-intercept;slope 
D) function;abscissa

Question 9

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

Accepted Answer

A) True 
 B)False

Question 10

Linear relationships can differ in terms of the values of their intercepts as well as in the values of their slopes.

Accepted Answer

A) True 
 B)False

Question 11

Correlation and regression both can help researchers to

Accepted Answer

A) understand how one variable is causally related to a second 
B) describe a linear relationship between two variables 
C) describe data for a single variable 
D) understand the distribution for scores on one variable 
A) understand how one variable is causally related to a second 
B) describe a linear relationship between two variables 
C) describe data for a single variable 
D) understand the distribution for scores on one variable

Question 12

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 13

When there is no linear relationship between X and Y,the z scores on X will bear no consistent relationship to the z scores on Y,either in size or sign.

Accepted Answer

A) True 
 B)False

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

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 16

When some third variable is responsible for the correlation between X and Y,the correlation is said to be:

Accepted Answer

A) spurious 
B) false 
C) nonlinear 
D) moderate 
A) spurious 
B) false 
C) nonlinear 
D) moderate

Question 17

What does the slope of a line refer to?

Accepted Answer

The slope of a line indicates

Question 18

In the case of a(n)_____ relationship,the standard scores on X and Y will have different signs but will be identical in size.

Accepted Answer

A) perfect negative linear 
B) prefect positive linear 
C) imperfect negative nonlinear 
D) imperfect negative linear 
A) perfect negative linear 
B) prefect positive linear 
C) imperfect negative nonlinear 
D) imperfect negative linear

Question 19

From a statistical perspective,the designation of one variable as the X variable and one variable as the Y variable is arbitrary.

Accepted Answer

A) True 
 B)False

Question 20

Suppose you were interested in conducting a study examining how ratings of similarity between oneself and another person were related to how attracted one is to the other person.You conduct this study by giving participants a description of a person named "Sarah." Participants are asked to read the description and then rate on a scale from 1 to 10 how similar Sarah is to themselves.You also ask each participant to rate on a scale from 1 to 20 how likeable they think Sarah is.
X = rating of similarity of target to oneself
Y = rating of likability of the target ("Sarah")
62 people participate in your study,and you obtain the following data:   
= 6.00 SCP = 66   
= 10.00 SSX = 40
SSY = 136
Calculate the y-intercept for the regression equation for the above data.

Accepted Answer

What is a predicted value of Y?

The point at which a line intersects the Y axis when X = 1.0 is called the intercept.

Refer to the following data set. What is the correlation between X and Y?

If X helps to predict Y,then the _ will be smaller than the _.

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:

The defining characteristic of the regression line is that

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

In a scatterplot,the X variable should be plotted on the _,and the Y variable should be plotted on the _.

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

Linear relationships can differ in terms of the values of their intercepts as well as in the values of their slopes.

Correlation and regression both can help researchers to

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

When there is no linear relationship between X and Y,the z scores on X will bear no consistent relationship to the z scores on Y,either in size or sign.

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

A positive slope indicates _________ between two variables.

When some third variable is responsible for the correlation between X and Y,the correlation is said to be:

What does the slope of a line refer to?

In the case of a(n)_____ relationship,the standard scores on X and Y will have different signs but will be identical in size.

From a statistical perspective,the designation of one variable as the X variable and one variable as the Y variable is arbitrary.

Introduction and Mathematical Preliminaries

Frequency and Probability Distributions

Percentiles percentile Ranks standard Scores and the Normal Distribution

Measures of Central Tendency and Variability

Estimation and Sampling Distributions

Hypothesis Testing: Inferences About a Single Mean

Probability

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

What is a predicted value of Y?

The point at which a line intersects the Y axis when X = 1.0 is called the intercept.

Refer to the following data set. What is the correlation between X and Y?

If X helps to predict Y,then the _____ will be smaller than the _____.

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:

The defining characteristic of the regression line is that

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

In a scatterplot,the X variable should be plotted on the _____,and the Y variable should be plotted on the _____.

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

Linear relationships can differ in terms of the values of their intercepts as well as in the values of their slopes.

Correlation and regression both can help researchers to

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

When there is no linear relationship between X and Y,the z scores on X will bear no consistent relationship to the z scores on Y,either in size or sign.

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

A positive slope indicates _________ between two variables.

When some third variable is responsible for the correlation between X and Y,the correlation is said to be:

What does the slope of a line refer to?

In the case of a(n)_____ relationship,the standard scores on X and Y will have different signs but will be identical in size.

From a statistical perspective,the designation of one variable as the X variable and one variable as the Y variable is arbitrary.

Introduction and Mathematical Preliminaries

Frequency and Probability Distributions

Percentiles percentile Ranks standard Scores and the Normal Distribution

Measures of Central Tendency and Variability

Estimation and Sampling Distributions

Hypothesis Testing: Inferences About a Single Mean

Probability

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 X helps to predict Y,then the _ will be smaller than the _.

In a scatterplot,the X variable should be plotted on the _,and the Y variable should be plotted on the _.