Question 1

A simple analysis of variance is used to study participants who are tested _______.

Accepted Answer

A) only once 
B) only twice 
C) once or more 
D) twice or more 
A) only once 
B) only twice 
C) once or more 
D) twice or more

Question 2

What is the F value?

Accepted Answer

The F value is test statistic

Question 3

The analysis of variance tests the difference between three or more means.

Accepted Answer

A) True 
 B)False

Question 4

When interpreting F₍₂, ₂₇₎ = 8.80, p < .05, what is the total sample size examined?

Accepted Answer

A) 30 
B) 29 
C) 3 
D) 2 
A) 30 
B) 29 
C) 3 
D) 2

Question 5

When you perform multiple t-tests, you increase the Type II error rate to higher than an acceptable rate.

Accepted Answer

A) True 
 B)False

Question 6

Using ANOVA, an alternative or research hypothesis could look like this:

Accepted Answer

A) H?: µ? = µ? = µ? 
B) H?: µ? > µ? > µ? 
C) H?: µ? = µ? > µ? 
D)   $$H _ { 1 } : \bar { X } _ { 1 } \neq \bar { X } _ { 2 } \neq \bar { X } _ { 3 }$$ 
A) H?: µ? = µ? = µ? 
B) H?: µ? > µ? > µ? 
C) H?: µ? = µ? > µ? 
D)   $$H _ { 1 } : \bar { X } _ { 1 } \neq \bar { X } _ { 2 } \neq \bar { X } _ { 3 }$$

Question 7

How would you interpret the equation: ?

Accepted Answer

The above equation is a research hypothe

Question 8

If the amount of variability due to within-group differences is equal to the amount of variability due to between-group differences, your F value will be equal to _______.

Accepted Answer

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

Question 9

Analysis of Variance refers to ANOVA.

Accepted Answer

A) True 
 B)False

Question 10

In a 5 × 4 factorial ANOVA design, how many possible group assignments for subjects are there?

Accepted Answer

A) 5 
B) 20 
C) 4 
D) 9 
A) 5 
B) 20 
C) 4 
D) 9

Question 11

If you wanted to examine whether the degree of parental involvement differs based on students' grade in school (i.e., first, second, third, etc.), what is the dependent variable of interest?

Accepted Answer

A) grade level 
B) students 
C) parents 
D) degree of parent involvement 
A) grade level 
B) students 
C) parents 
D) degree of parent involvement

Question 12

If you wanted to examine whether the degree of parental involvement differs based on students' grade in school (i.e., first, second, third, etc.), what is the independent variable of interest?

Accepted Answer

A) grade level 
B) students 
C) parents 
D) degree of parent involvement 
A) grade level 
B) students 
C) parents 
D) degree of parent involvement

Question 13

When interpreting F₍₂, ₅₇₎ = 10.80, p < .01, what is the total sample size examined?

Accepted Answer

A) 60 
B) 57 
C) 3 
D) 2 
A) 60 
B) 57 
C) 3 
D) 2

Question 14

Which of the following would be an example of a design that examines the effects of gender and region of residence (e.g., Northeast, South, Midwest, and West)?

Accepted Answer

A) simple ANOVA 
B) one-way ANOVA 
C) 2 × 2 ANOVA 
D) 2 × 4 ANOVA 
A) simple ANOVA 
B) one-way ANOVA 
C) 2 × 2 ANOVA 
D) 2 × 4 ANOVA

Question 15

A simple analysis of variance includes _______ factor(s) or treatment variables in the analysis.

Accepted Answer

A) only one 
B) only two 
C) three or more 
D) one or more 
A) only one 
B) only two 
C) three or more 
D) one or more

Question 16

ANOVA constitutes a pairwise comparison.

Accepted Answer

A) True 
 B)False

Question 17

The variability between groups is due to _______.

Accepted Answer

A) chance 
B) the grouping factor 
C) the F ratio 
D) the level of the dependent variable 
A) chance 
B) the grouping factor 
C) the F ratio 
D) the level of the dependent variable

Question 18

Which of the following would be an example of a design that examines the effects of region of residence (e.g., Northeast, South, Midwest, and West) and income (i.e., low, medium, and high)?

Accepted Answer

A) Simple ANOVA 
B) One-way ANOVA 
C) 3 × 3 ANOVA 
D) 4 × 3 ANOVA 
A) Simple ANOVA 
B) One-way ANOVA 
C) 3 × 3 ANOVA 
D) 4 × 3 ANOVA

Question 19

When interpreting F₍₂, ₅₇₎ = 10.80, p < .01, what is the between-groups df?

Accepted Answer

A) 60 
B) 27 
C) 3 
D) 2 
A) 60 
B) 27 
C) 3 
D) 2

Question 20

All F-tests are nondirectional.

Accepted Answer

A) True 
 B)False

Exam 13: Two Groups Too Many Try Analysis of Variance

A simple analysis of variance is used to study participants who are tested _______.

What is the F value?

The analysis of variance tests the difference between three or more means.

When interpreting F₍₂, ₂₇₎ = 8.80, p < .05, what is the total sample size examined?

When you perform multiple t-tests, you increase the Type II error rate to higher than an acceptable rate.

Using ANOVA, an alternative or research hypothesis could look like this:

How would you interpret the equation: ?

If the amount of variability due to within-group differences is equal to the amount of variability due to between-group differences, your F value will be equal to _______.

Analysis of Variance refers to ANOVA.

In a 5 × 4 factorial ANOVA design, how many possible group assignments for subjects are there?

If you wanted to examine whether the degree of parental involvement differs based on students' grade in school (i.e., first, second, third, etc.), what is the dependent variable of interest?

If you wanted to examine whether the degree of parental involvement differs based on students' grade in school (i.e., first, second, third, etc.), what is the independent variable of interest?

When interpreting F₍₂, ₅₇₎ = 10.80, p < .01, what is the total sample size examined?

Which of the following would be an example of a design that examines the effects of gender and region of residence (e.g., Northeast, South, Midwest, and West)?

A simple analysis of variance includes _______ factor(s) or treatment variables in the analysis.

ANOVA constitutes a pairwise comparison.

The variability between groups is due to _______.

Which of the following would be an example of a design that examines the effects of region of residence (e.g., Northeast, South, Midwest, and West) and income (i.e., low, medium, and high)?

When interpreting F₍₂, ₅₇₎ = 10.80, p < .01, what is the between-groups df?

All F-tests are nondirectional.

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