## Comparing Two Independent Group

• Points30

• Questions10

• Time Limit45 Minutes

• Allowed AttemptsUnlimited

Instructions

The quiz:

• Covers the Textbookmaterial from Module 5: Week 5.
• Contains10 multiple-choice
• Is limitedto 45 minutes.
• Allowsunlimited attempts and the highest attempt will count towards the grade.
• Is worth 30 points.

TAKE THE QUIZ AGAIN

Attempt History

 Attempt Time Score KEPT Attempt 3 LATEST Attempt 3 Attempt 2 Attempt 1

Question 1

3 / 3 pts

The independent samples t-test is robust if which assumption is violated:

there is no homogeneity of variance

the outcome variable is not quantitative

the outcome variable is not normally distributed

the sample size is too small

Question 2

3 / 3 pts

If the Levene test yields a value of greater than .05, we report:

the standard degrees of freedom

the Levene z value

the Levene covariate

Question 3

3 / 3 pts

A single independent t test is used for:

determining the difference of one dependent variable between two levels of one independent variable

determining the difference of two dependent variables between two levels of one independent variable

determining the difference of two dependent variables between two levels of one independent variable

determining the difference between two independent variables on one dependent variable

Question 4

3 / 3 pts

_________ is an estimate of the magnitude of the difference between the means of two groups measured in standard deviation units.

Cohen’s d

t2

η2

β

Question 5

3 / 3 pts

For an independent t test the dependent variable should be:

normally distributed

categorical

platykurtic

leptokurtic

Question 6

3 / 3 pts

If the Levene test yields a value of less than .05, we report:

the standard degrees of freedom

the Levene z value

the Levene covariate

Question 7

3 / 3 pts

In SPSS, to conduct a independent-samples t test you must go to the main menu:

Analyze

Transform

t-tests

Graphs

Question 8

3 / 3 pts

A dichotomous variable has:

two unique values

two or more unique values

is quantitative

is continuous

IncorrectQuestion 9

0 / 3 pts

Which of the following is a range of possible values for a measure of effect size?

0%-100%

25%-50%

0%-95%

0%-5%

Question 10

3 / 3 pts

All of the following should be included in the Levene statistics statement in the writeup for a t test except:

implications of the Levene test

value

F value

p value for Levene test

• Points30

• Questions10

• Time Limit45 Minutes

• Allowed AttemptsUnlimited

Instructions

The quiz:

• Covers the Textbookmaterial from Module 5: Week 5.
• Contains10 multiple-choice
• Is limitedto 45 minutes.
• Allowsunlimited attempts and the highest attempt will count towards the grade.
• Is worth 30 points.

TAKE THE QUIZ AGAIN

Attempt History

 Attempt Time Score KEPT Attempt 3 LATEST Attempt 3 Attempt 2 Attempt 1

Question 1

3 / 3 pts

The independent samples t-test is robust if which assumption is violated:

there is no homogeneity of variance

the outcome variable is not quantitative

the outcome variable is not normally distributed

the sample size is too small

Question 2

3 / 3 pts

If the Levene test yields a value of greater than .05, we report:

the standard degrees of freedom

the Levene z value

the Levene covariate

Question 3

3 / 3 pts

A single independent t test is used for:

determining the difference of one dependent variable between two levels of one independent variable

determining the difference of two dependent variables between two levels of one independent variable

determining the difference of two dependent variables between two levels of one independent variable

determining the difference between two independent variables on one dependent variable

Question 4

3 / 3 pts

_________ is an estimate of the magnitude of the difference between the means of two groups measured in standard deviation units.

Cohen’s d

t2

η2

β

Question 5

3 / 3 pts

For an independent t test the dependent variable should be:

normally distributed

categorical

platykurtic

leptokurtic

Question 6

3 / 3 pts

If the Levene test yields a value of less than .05, we report:

the standard degrees of freedom

the Levene z value

the Levene covariate

Question 7

3 / 3 pts

In SPSS, to conduct a independent-samples t test you must go to the main menu:

Analyze

Transform

t-tests

Graphs

Question 8

3 / 3 pts

A dichotomous variable has:

two unique values

two or more unique values

is quantitative

is continuous

IncorrectQuestion 9

0 / 3 pts

Which of the following is a range of possible values for a measure of effect size?

0%-100%

25%-50%

0%-95%

0%-5%

Question 10

3 / 3 pts

All of the following should be included in the Levene statistics statement in the writeup for a t test except:

implications of the Levene test

value

F value

p value for Levene test

• Points30

• Questions10

• Time Limit45 Minutes

• Allowed AttemptsUnlimited

Instructions

The quiz:

• Covers the Textbookmaterial from Module 5: Week 5.
• Contains10 multiple-choice
• Is limitedto 45 minutes.
• Allowsunlimited attempts and the highest attempt will count towards the grade.
• Is worth 30 points.

TAKE THE QUIZ AGAIN

Attempt History

 Attempt Time Score KEPT Attempt 3 LATEST Attempt 3 Attempt 2 Attempt 1

Question 1

3 / 3 pts

The independent samples t-test is robust if which assumption is violated:

there is no homogeneity of variance

the outcome variable is not quantitative

the outcome variable is not normally distributed

the sample size is too small

Question 2

3 / 3 pts

If the Levene test yields a value of greater than .05, we report:

the standard degrees of freedom

the Levene z value

the Levene covariate

Question 3

3 / 3 pts

A single independent t test is used for:

determining the difference of one dependent variable between two levels of one independent variable

determining the difference of two dependent variables between two levels of one independent variable

determining the difference of two dependent variables between two levels of one independent variable

determining the difference between two independent variables on one dependent variable

Question 4

3 / 3 pts

_________ is an estimate of the magnitude of the difference between the means of two groups measured in standard deviation units.

Cohen’s d

t2

η2

β

Question 5

3 / 3 pts

For an independent t test the dependent variable should be:

normally distributed

categorical

platykurtic

leptokurtic

Question 6

3 / 3 pts

If the Levene test yields a value of less than .05, we report:

the standard degrees of freedom

the Levene z value

the Levene covariate

Question 7

3 / 3 pts

In SPSS, to conduct a independent-samples t test you must go to the main menu:

Analyze

Transform

t-tests

Graphs

Question 8

3 / 3 pts

A dichotomous variable has:

two unique values

two or more unique values

is quantitative

is continuous

IncorrectQuestion 9

0 / 3 pts

Which of the following is a range of possible values for a measure of effect size?

0%-100%

25%-50%

0%-95%

0%-5%

Question 10

3 / 3 pts

All of the following should be included in the Levene statistics statement in the writeup for a t test except:

implications of the Levene test

value

F value

p value for Levene test

• Points30

• Questions10

• Time Limit45 Minutes

• Allowed AttemptsUnlimited

Instructions

The quiz:

• Covers the Textbookmaterial from Module 5: Week 5.
• Contains10 multiple-choice
• Is limitedto 45 minutes.
• Allowsunlimited attempts and the highest attempt will count towards the grade.
• Is worth 30 points.

TAKE THE QUIZ AGAIN

Attempt History

 Attempt Time Score KEPT Attempt 3 LATEST Attempt 3 Attempt 2 Attempt 1

Question 1

3 / 3 pts

The independent samples t-test is robust if which assumption is violated:

there is no homogeneity of variance

the outcome variable is not quantitative

the outcome variable is not normally distributed

the sample size is too small

Question 2

3 / 3 pts

If the Levene test yields a value of greater than .05, we report:

the standard degrees of freedom

the Levene z value

the Levene covariate

Question 3

3 / 3 pts

A single independent t test is used for:

determining the difference of one dependent variable between two levels of one independent variable

determining the difference of two dependent variables between two levels of one independent variable

determining the difference of two dependent variables between two levels of one independent variable

determining the difference between two independent variables on one dependent variable

Question 4

3 / 3 pts

_________ is an estimate of the magnitude of the difference between the means of two groups measured in standard deviation units.

Cohen’s d

t2

η2

β

Question 5

3 / 3 pts

For an independent t test the dependent variable should be:

normally distributed

categorical

platykurtic

leptokurtic

Question 6

3 / 3 pts

If the Levene test yields a value of less than .05, we report:

the standard degrees of freedom

the Levene z value

the Levene covariate

Question 7

3 / 3 pts

In SPSS, to conduct a independent-samples t test you must go to the main menu:

Analyze

Transform

t-tests

Graphs

Question 8

3 / 3 pts

A dichotomous variable has:

two unique values

two or more unique values

is quantitative

is continuous

IncorrectQuestion 9

0 / 3 pts

Which of the following is a range of possible values for a measure of effect size?

0%-100%

25%-50%

0%-95%

0%-5%

Question 10

3 / 3 pts

All of the following should be included in the Levene statistics statement in the writeup for a t test except:

implications of the Levene test

value

F value

p value for Levene test

• Points30

• Questions10

• Time Limit45 Minutes

• Allowed AttemptsUnlimited

Instructions

The quiz:

• Covers the Textbookmaterial from Module 5: Week 5.
• Contains10 multiple-choice
• Is limitedto 45 minutes.
• Allowsunlimited attempts and the highest attempt will count towards the grade.
• Is worth 30 points.

TAKE THE QUIZ AGAIN

Attempt History

 Attempt Time Score KEPT Attempt 3 LATEST Attempt 3 Attempt 2 Attempt 1

Question 1

3 / 3 pts

The independent samples t-test is robust if which assumption is violated:

there is no homogeneity of variance

the outcome variable is not quantitative

the outcome variable is not normally distributed

the sample size is too small

Question 2

3 / 3 pts

If the Levene test yields a value of greater than .05, we report:

the standard degrees of freedom

the Levene z value

the Levene covariate

Question 3

3 / 3 pts

A single independent t test is used for:

determining the difference of one dependent variable between two levels of one independent variable

determining the difference of two dependent variables between two levels of one independent variable

determining the difference of two dependent variables between two levels of one independent variable

determining the difference between two independent variables on one dependent variable

Question 4

3 / 3 pts

_________ is an estimate of the magnitude of the difference between the means of two groups measured in standard deviation units.

Cohen’s d

t2

η2

β

Question 5

3 / 3 pts

For an independent t test the dependent variable should be:

normally distributed

categorical

platykurtic

leptokurtic

Question 6

3 / 3 pts

If the Levene test yields a value of less than .05, we report:

the standard degrees of freedom

the Levene z value

the Levene covariate

Question 7

3 / 3 pts

In SPSS, to conduct a independent-samples t test you must go to the main menu:

Analyze

Transform

t-tests

Graphs

Question 8

3 / 3 pts

A dichotomous variable has:

two unique values

two or more unique values

is quantitative

is continuous

IncorrectQuestion 9

0 / 3 pts

Which of the following is a range of possible values for a measure of effect size?

0%-100%

25%-50%

0%-95%

0%-5%

Question 10

3 / 3 pts

All of the following should be included in the Levene statistics statement in the writeup for a t test except:

implications of the Levene test

value

F value

p value for Levene test