Question 1

X and Y correlate .6.What is the coefficient of alienation of this relation?

Accepted Answer

A)  0 
B)  .36 
C)  .60 
D)  .80 
A)  0 
B)  .36 
C)  .60 
D)  .80

Question 2

The type of correlation coefficient used to find the association between two sets of ranks is called

Accepted Answer

A)  Spearman's rho. 
B)  the point biserial correlation. 
C)  the phi coefficient. 
D)  factor loading. 
A)  Spearman's rho. 
B)  the point biserial correlation. 
C)  the phi coefficient. 
D)  factor loading.

Question 3

Which of the following describes the relationship between two artificially dichotomous variables?

Accepted Answer

A)  tetrachoric correlation 
B)  factor analysis 
C)  discriminant analysis 
D)  multiple regression 
A)  tetrachoric correlation 
B)  factor analysis 
C)  discriminant analysis 
D)  multiple regression

Question 4

Which of the following is a true dichotomous variable?

Accepted Answer

A)  football players' numbers 
B)  weight 
C)  time 
D)  gender 
A)  football players' numbers 
B)  weight 
C)  time 
D)  gender

Question 5

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 6

The correlation equals -1 for which of the following four pairs of numbers?

Accepted Answer

A)  (2,4),(4,8),(0,0),(-2,-4) 
B)  (0,0),(1,1),(2,4),(3,9) 
C)  (4,3),(2,-1),(-2,-9),(0,-5) 
D)  (4,-9),(2,-1),(-2,-2),(0,-5) 
A)  (2,4),(4,8),(0,0),(-2,-4) 
B)  (0,0),(1,1),(2,4),(3,9) 
C)  (4,3),(2,-1),(-2,-9),(0,-5) 
D)  (4,-9),(2,-1),(-2,-2),(0,-5)

Question 7

One formula for the correlation between a continuous variable and an artificially dichotomized variable is

Accepted Answer

A)  Spearman's rank order formula. 
B)  the point biserial correlation. 
C)  the phi coefficient. 
D)  the biserial correlation. 
A)  Spearman's rank order formula. 
B)  the point biserial correlation. 
C)  the phi coefficient. 
D)  the biserial correlation.

Question 8

Assume that X and Y correlate .4,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 9

Which of the following is an artificially dichotomous variable?

Accepted Answer

A)  gender 
B)  weight 
C)  passing/failing a final exam 
D)  GPA 
A)  gender 
B)  weight 
C)  passing/failing a final exam 
D)  GPA

Question 10

The type of correlation coefficient used to correlate a dichotomous variable (two categories)and a continuous variable is called

Accepted Answer

A)  Spearman's rho. 
B)  the point biserial correlation. 
C)  the phi coefficient. 
D)  multivariate analysis. 
A)  Spearman's rho. 
B)  the point biserial correlation. 
C)  the phi coefficient. 
D)  multivariate analysis.

Question 11

Suppose that we find a regression relating X to Y by the following equation: Y´ = 12 + .80X.If we observe an X score of 2,what score on Y would we expect?

Accepted Answer

A)  8 
B)  10.4 
C)  13.6 
D)  16.4 
A)  8 
B)  10.4 
C)  13.6 
D)  16.4

Question 12

What is the sum of the predicted value of Y and its residual?

Accepted Answer

A)  the coefficient of determination 
B)  the obtained Y 
C)  the alienation coefficient 
D)  the sum of squares 
A)  the coefficient of determination 
B)  the obtained Y 
C)  the alienation coefficient 
D)  the sum of squares

Question 13

The intercept is the

Accepted Answer

A)  value obtained using the equation to predict scores. 
B)  slope of the regression line. 
C)  value of Y when X is zero. 
D)  standard deviation of a test score. 
A)  value obtained using the equation to predict scores. 
B)  slope of the regression line. 
C)  value of Y when X is zero. 
D)  standard deviation of a test score.

Question 14

An appropriate correlation coefficient describing the relationship between two artificially dichotomous variables is

Accepted Answer

A)  biserial correlation. 
B)  phi coefficient. 
C)  tetrachoric correlation. 
D)  point biserial correlation. 
A)  biserial correlation. 
B)  phi coefficient. 
C)  tetrachoric correlation. 
D)  point biserial correlation.

Question 15

In the formula Y´ = a + bX,Y´ is the

Accepted Answer

A)  regression coefficient. 
B)  raw score of Y. 
C)  predicted value of Y. 
D)  intercept. 
A)  regression coefficient. 
B)  raw score of Y. 
C)  predicted value of Y. 
D)  intercept.

Question 16

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.

Question 17

The amount of decrease observed when a regression equation is created for one population and applied to another is called

Accepted Answer

A)  the true score. 
B)  the standard deviation. 
C)  a residual. 
D)  shrinkage. 
A)  the true score. 
B)  the standard deviation. 
C)  a residual. 
D)  shrinkage.

Question 18

A correlation of .80 suggests that

Accepted Answer

A)  the scores on X and Y are not related. 
B)  standardized scores on the Y axis are expected to be .8 times the corresponding scores on the X axis. 
C)  scores on Y will be 80% larger than corresponding scores on X. 
D)  the differences between X and Y are statistically non-significant. 
A)  the scores on X and Y are not related. 
B)  standardized scores on the Y axis are expected to be .8 times the corresponding scores on the X axis. 
C)  scores on Y will be 80% larger than corresponding scores on X. 
D)  the differences between X and Y are statistically non-significant.

Question 19

The correlation coefficient can take any value from

Accepted Answer

A)  -1.0 to 1.0. 
B)  0 to 1.0. 
C)  -1.0 to 0. 
D)  1.0 to 10.0. 
A)  -1.0 to 1.0. 
B)  0 to 1.0. 
C)  -1.0 to 0. 
D)  1.0 to 10.0.

Question 20

Which of the following is the slope of the regression line?

Accepted Answer

A)  The regression coefficient 
B)  The intercept 
C)  The relative covariance 
D)  The best fit 
A)  The regression coefficient 
B)  The intercept 
C)  The relative covariance 
D)  The best fit

Exam 3: Correlation and Regression

X and Y correlate .6.What is the coefficient of alienation of this relation?

The type of correlation coefficient used to find the association between two sets of ranks is called

Which of the following describes the relationship between two artificially dichotomous variables?

Which of the following is a true dichotomous variable?

Correlation coefficients can be tested for significance using the

The correlation equals -1 for which of the following four pairs of numbers?

One formula for the correlation between a continuous variable and an artificially dichotomized variable is

Assume that X and Y correlate .4,are in Z score form,and that a particular value of X is 1.What is the predicted value of Y?

Which of the following is an artificially dichotomous variable?

The type of correlation coefficient used to correlate a dichotomous variable (two categories)and a continuous variable is called

Suppose that we find a regression relating X to Y by the following equation: Y´ = 12 + .80X.If we observe an X score of 2,what score on Y would we expect?

What is the sum of the predicted value of Y and its residual?

The intercept is the

An appropriate correlation coefficient describing the relationship between two artificially dichotomous variables is

In the formula Y´ = a + bX,Y´ is the

Correlation coefficients describe the

The amount of decrease observed when a regression equation is created for one population and applied to another is called

A correlation of .80 suggests that

The correlation coefficient can take any value from

Which of the following is the slope of the regression line?

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

Other Individual 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

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