Question 1

An appropriate statistical technique that one might use to see how Scholastic Aptitude Test Scores and High School Grades jointly relate to Freshman grades is

Accepted Answer

A)  linear regression. 
B)  multiple regression. 
C)  discriminant analysis. 
D)  factor analysis. 
A)  linear regression. 
B)  multiple regression. 
C)  discriminant analysis. 
D)  factor analysis.

Question 2

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 3

If the regression between X and Y is less than perfect,

Accepted Answer

A)  predicted values of Y are relatively further from the mean of Y than observed values of X are to the mean of X. 
B)  predicted values of Y are relatively closer to the mean of Y than observed values of X are to the mean of X. 
C)  values of Y cannot be predicted from observations of X. 
D)  observed values of X are relatively closer to the mean of X than predicted values of Y are to the mean of Y. 
A)  predicted values of Y are relatively further from the mean of Y than observed values of X are to the mean of X. 
B)  predicted values of Y are relatively closer to the mean of Y than observed values of X are to the mean of X. 
C)  values of Y cannot be predicted from observations of X. 
D)  observed values of X are relatively closer to the mean of X than predicted values of Y are to the mean of Y.

Question 4

Each point on a scatter diagram represents

Accepted Answer

A)  the variance of a set of scores. 
B)  the standard deviation of a set of scores. 
C)  where an individual scored compared to the mean. 
D)  where an individual scored on both x and y. 
A)  the variance of a set of scores. 
B)  the standard deviation of a set of scores. 
C)  where an individual scored compared to the mean. 
D)  where an individual scored on both x and y.

Question 5

The best-fitting straight line through a set of points in a scatter diagram is known as the

Accepted Answer

A)  regression line. 
B)  linear line. 
C)  correlation line. 
D)  perfect correlation. 
A)  regression line. 
B)  linear line. 
C)  correlation line. 
D)  perfect correlation.

Question 6

The coefficient of determination is the

Accepted Answer

A)  number of degrees of freedom. 
B)  difference between predicted and observed values of Y. 
C)  mean. 
D)  squared correlation coefficient. 
A)  number of degrees of freedom. 
B)  difference between predicted and observed values of Y. 
C)  mean. 
D)  squared correlation coefficient.

Question 7

Which of the following is true of the best-fitting line?

Accepted Answer

A)  It establishes statistical significance. 
B)  It increases as the correlation decreases. 
C)  It is rarely useful for prediction. 
D)  It minimizes residuals. 
A)  It establishes statistical significance. 
B)  It increases as the correlation decreases. 
C)  It is rarely useful for prediction. 
D)  It minimizes residuals.

Question 8

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 9

It is frequently argued that the Scholastic Aptitude Test (SAT)should not be used to select students because the correlation between their SAT scores and their freshman grades may be low,indicating that the SAT is not a valid measure.How does the concept of range restriction apply here? What other factors might operate to reduce this correlation?

Accepted Answer

The concept of range restriction applies

Question 10

What does regression do?

Accepted Answer

A)  It ensures the statistical significance of correlations. 
B)  It converts raw scores to t scores. 
C)  It makes predictions about scores based on other scores. 
D)  It creates linear relationships for transforms. 
A)  It ensures the statistical significance of correlations. 
B)  It converts raw scores to t scores. 
C)  It makes predictions about scores based on other scores. 
D)  It creates linear relationships for transforms.

Question 11

What is the point of least squares for the numbers 2,7,8,and 11?

Accepted Answer

A)  indeterminate 
B)  4 
C)  7 
D)  10 
A)  indeterminate 
B)  4 
C)  7 
D)  10

Question 12

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 13

In the linear equation Y´ = a + bX,"b" is called

Accepted Answer

A)  the slope. 
B)  the intercept. 
C)  the actual score. 
D)  the predicted score. 
A)  the slope. 
B)  the intercept. 
C)  the actual score. 
D)  the predicted score.

Question 14

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 15

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 16

Which of the following four pairs of numbers describes a correlation that is very close to .0?

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 17

Which of the following describes the relationship between a true dichotomous variable and a continuous variable?

Accepted Answer

A)  Spearman's rho 
B)  point biserial correlation 
C)  Pearson product-moment 
D)  the phi coefficient 
A)  Spearman's rho 
B)  point biserial correlation 
C)  Pearson product-moment 
D)  the phi coefficient

Question 18

Assumed that X and Y correlate .3 in a sample of 102.What is the approximate t-value used to test the significance of this relationship?

Accepted Answer

A)  0 
B)  1 
C)  2 
D)  3 
A)  0 
B)  1 
C)  2 
D)  3

Question 19

The observation that Y decreases as X increases suggests

Accepted Answer

A)  a positive correlation. 
B)  no correlation. 
C)  a negative correlation. 
D)  a curvilinear correlation. 
A)  a positive correlation. 
B)  no correlation. 
C)  a negative correlation. 
D)  a curvilinear correlation.

Question 20

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.

An appropriate statistical technique that one might use to see how Scholastic Aptitude Test Scores and High School Grades jointly relate to Freshman grades is

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?

If the regression between X and Y is less than perfect,

Each point on a scatter diagram represents

The best-fitting straight line through a set of points in a scatter diagram is known as the

The coefficient of determination is the

Which of the following is true of the best-fitting line?

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

What does regression do?

What is the point of least squares for the numbers 2,7,8,and 11?

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

In the linear equation Y´ = a + bX,"b" is called

In the formula Y´ = a + bX,Y´ is the

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?

Which of the following four pairs of numbers describes a correlation that is very close to .0?

Which of the following describes the relationship between a true dichotomous variable and a continuous variable?

Assumed that X and Y correlate .3 in a sample of 102.What is the approximate t-value used to test the significance of this relationship?

The observation that Y decreases as X increases suggests

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

Introduction

Norms and Basic Statistics for Testing

Reliability

Validity

Test Bias

Writing and Evaluating Test Items

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

Ethics and the Future of Psychological Testing

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Exam 3: Correlation and Regression

An appropriate statistical technique that one might use to see how Scholastic Aptitude Test Scores and High School Grades jointly relate to Freshman grades is

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?

If the regression between X and Y is less than perfect,

Each point on a scatter diagram represents

The best-fitting straight line through a set of points in a scatter diagram is known as the

The coefficient of determination is the

Which of the following is true of the best-fitting line?

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

What does regression do?

What is the point of least squares for the numbers 2,7,8,and 11?

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

In the linear equation Y´ = a + bX,"b" is called

In the formula Y´ = a + bX,Y´ is the

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?

Which of the following four pairs of numbers describes a correlation that is very close to .0?

Which of the following describes the relationship between a true dichotomous variable and a continuous variable?

Assumed that X and Y correlate .3 in a sample of 102.What is the approximate t-value used to test the significance of this relationship?

The observation that Y decreases as X increases suggests

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

Introduction

Norms and Basic Statistics for Testing

Reliability

Validity

Test Bias

Writing and Evaluating Test Items

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

Ethics and the Future of Psychological Testing

Filters