Question 1

Which of the following is a mathematical index that describes the direction and magnitude of a relationship?

Accepted Answer

A) Intercept 
B) Positive correlation 
C) Correlation coefficient 
D) Residual 
A) Intercept 
B) Positive correlation 
C) Correlation coefficient 
D) Residual

Question 2

X and Y correlate .5. What is the coefficient of determination of this relation?

Accepted Answer

A) 0 
B) .25 
C) .50 
D) .75 
A) 0 
B) .25 
C) .50 
D) .75

Question 3

Which of the following is used to test the statistical significance of correlations?

Accepted Answer

A) The regression line 
B) The t distribution 
C) The coefficient of relatedness 
D) The slope and the intercept 
A) The regression line 
B) The t distribution 
C) The coefficient of relatedness 
D) The slope and the intercept

Question 4

The coefficient of alienation measures what?

Accepted Answer

A) Shrinkage 
B) The coefficient of determination 
C) Nonassociation between two variables 
D) The standard deviation of residuals 
A) Shrinkage 
B) The coefficient of determination 
C) Nonassociation between two variables 
D) The standard deviation of residuals

Question 5

Given the following ordered pairs, you can infer that the correlation is most likely 8 7
7 6
3 2
1 2
1 2

Accepted Answer

A) positive. 
B) negative. 
C) zero. 
D) perfect. 
A) positive. 
B) negative. 
C) zero. 
D) perfect.

Question 6

If the correlation between X and Y is 0 and we observe a score (in Z units)of 1.5 on X , what score would be predicted for Y ?

Accepted Answer

A) −1.5 
B) −.75 
C) 0 
D) 1.5 
A) −1.5 
B) −.75 
C) 0 
D) 1.5

Question 7

The observation that the preference for watching TV shows depicting violence is correlated −.86 with altruism suggests

Accepted Answer

A) TV violence causes altruistic behavior. 
B) altruistic behavior causes a preference for TV violence. 
C) increases in altruism are associated with decreases in preference for violent programs. 
D) there is no relationship between TV preference and altruism. 
A) TV violence causes altruistic behavior. 
B) altruistic behavior causes a preference for TV violence. 
C) increases in altruism are associated with decreases in preference for violent programs. 
D) there is no relationship between TV preference and altruism.

Question 8

A regression line

Accepted Answer

A) is always a straight line. 
B) can sometimes be nonlinear. 
C) cannot be used to make predictions. 
D) cannot be plotted in a scatter diagram. 
A) is always a straight line. 
B) can sometimes be nonlinear. 
C) cannot be used to make predictions. 
D) cannot be plotted in a scatter diagram.

Question 9

The primary purpose of factor analysis is to

Accepted Answer

A) determine the relationship between variables. 
B) reduce a larger set of variables to a smaller composite set. 
C) insure that proper inferences are being made. 
D) determine the degree of nonassociation between variables. 
A) determine the relationship between variables. 
B) reduce a larger set of variables to a smaller composite set. 
C) insure that proper inferences are being made. 
D) determine the degree of nonassociation between variables.

Question 10

Assume that X and Y correlate .6, are in Z score form, and that a particular value of X is 1. What is the predicted value of Y ?

Accepted Answer

A) 0 
B) .4 
C) .6 
D) 1 
A) 0 
B) .4 
C) .6 
D) 1

Question 11

How is discriminant analysis different from multiple regression?

Accepted Answer

A) In discriminant analysis, the criterion variable is a set of categories rather than a continuous variable. 
B) The criterion variable is continuous in discriminant analysis but not in multiple regression. 
C) Discriminant analysis is a form of factor analysis, while multiple regression is not. 
D) Discriminant analysis and multiple regression involve exactly the same process. 
A) In discriminant analysis, the criterion variable is a set of categories rather than a continuous variable. 
B) The criterion variable is continuous in discriminant analysis but not in multiple regression. 
C) Discriminant analysis is a form of factor analysis, while multiple regression is not. 
D) Discriminant analysis and multiple regression involve exactly the same process.

Question 12

If the coefficient of determination is 0.49, what is the correlation coefficient?

Accepted Answer

A) 0.24 
B) 0.51 
C) 0.70 
D) 0.89 
A) 0.24 
B) 0.51 
C) 0.70 
D) 0.89

Question 13

Factor loading refers to

Accepted Answer

A) the residual from a regression equation. 
B) the correlation between two principal components. 
C) the correlation between an item and a factor. 
D) the square root of a factor. 
A) the residual from a regression equation. 
B) the correlation between two principal components. 
C) the correlation between an item and a factor. 
D) the square root of a factor.

Question 14

If r = .6, what is the coefficient of alienation ?

Accepted Answer

A) .64 
B) .36 
C) .40 
D) .80 
A) .64 
B) .36 
C) .40 
D) .80

Question 15

John is asked to predict Janae's IQ score, but he knows nothing about her. John should predict Janae's IQ is 100 (which is the average IQ score), because he is relying on what kind of data?

Accepted Answer

A) Normative 
B) Regressive 
C) Correlational 
D) Transformative 
A) Normative 
B) Regressive 
C) Correlational 
D) Transformative

Question 16

To determine which combination of variables determines whether people are likely to get married or stay single, the appropriate method is

Accepted Answer

A) linear regression. 
B) a two-tailed test. 
C) discriminant analysis. 
D) factor analysis. 
A) linear regression. 
B) a two-tailed test. 
C) discriminant analysis. 
D) factor analysis.

Question 17

The coefficient of alienation is the

Accepted Answer

A) squared correlation coefficient. 
B) index of variation in Y not explained by its relationship to X . 
C) standard deviation of the residuals. 
D) square root of the standard deviation. 
A) squared correlation coefficient. 
B) index of variation in Y not explained by its relationship to X . 
C) standard deviation of the residuals. 
D) square root of the standard deviation.

Question 18

In general, a regression line is used to

Accepted Answer

A) make a prediction about a person's score on one variable, based on the person's score on a different variable. 
B) assess the magnitude of the relationship between two variables, based on sets of scores from the same people. 
C) assess the direction of the relationship between two variables, based on sets of scores from the same people. 
D) determine whether results of a study are statistically significant, based on a sample from the population. 
A) make a prediction about a person's score on one variable, based on the person's score on a different variable. 
B) assess the magnitude of the relationship between two variables, based on sets of scores from the same people. 
C) assess the direction of the relationship between two variables, based on sets of scores from the same people. 
D) determine whether results of a study are statistically significant, based on a sample from the population.

Question 19

Correlation coefficients can be tested for significance using the

Accepted Answer

A) Z distribution. 
B) t distribution. 
C) principle of least squares. 
D) regression distribution. 
A) Z distribution. 
B) t distribution. 
C) principle of least squares. 
D) regression distribution.

Question 20

Correlation coefficients describe the

Accepted Answer

A) degree of linearity of relation between X and Y . 
B) mean of X and Y . 
C) direction and magnitude of relationship between X and Y . 
D) causality of relationships between X and Y . 
A) degree of linearity of relation between X and Y . 
B) mean of X and Y . 
C) direction and magnitude of relationship between X and Y . 
D) causality of relationships between X and Y .

Exam 3: Correlation and Regression

Which of the following is a mathematical index that describes the direction and magnitude of a relationship?

X and Y correlate .5. What is the coefficient of determination of this relation?

Which of the following is used to test the statistical significance of correlations?

The coefficient of alienation measures what?

Given the following ordered pairs, you can infer that the correlation is most likely 8 7 7 6 3 2 1 2 1 2

If the correlation between X and Y is 0 and we observe a score (in Z units)of 1.5 on X , what score would be predicted for Y ?

The observation that the preference for watching TV shows depicting violence is correlated −.86 with altruism suggests

A regression line

The primary purpose of factor analysis is to

Assume that X and Y correlate .6, are in Z score form, and that a particular value of X is 1. What is the predicted value of Y ?

How is discriminant analysis different from multiple regression?

If the coefficient of determination is 0.49, what is the correlation coefficient?

Factor loading refers to

If r = .6, what is the coefficient of alienation ?

John is asked to predict Janae's IQ score, but he knows nothing about her. John should predict Janae's IQ is 100 (which is the average IQ score), because he is relying on what kind of data?

To determine which combination of variables determines whether people are likely to get married or stay single, the appropriate method is

The coefficient of alienation is the

In general, a regression line is used to

Correlation coefficients can be tested for significance using the

Correlation coefficients describe the

Introduction

Norms and Basic Statistics for Testing

Reliability

Validity

Writing and Evaluating Test Items

Test Administration

Interviewing Techniques

Theories of Intelligence and the Binet Scales

The Wechsler Intelligence Scales: Wais-Iv, Wisc-Iv, and Wppsi-III

Testing in Education: Tests of Ability in Education and Special Education

Standardized Tests in Education, Civil Service, and the Military

Applications in Clinical and Counseling Settings

Projective Personality Tests

Computers and Basic Psychological Science in Testing

Testing in Counseling Psychology

Testing in Health Psychology and Health Care

Testing in Industrial and Business Settings

Test Bias

Testing and the Law

The Future of Psychological Testing

Filters