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Question

1

 

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An independent-measures t test produced a t statistic with 

df

2

0. If the same data had been evaluated with an analysis of variance, what would be the df values for the F-ratio?

Answer

a.

1,

20

b.

2, 20

c.

1, 19

d.

2, 19

Question 2

 

An analysis of variance comparing three treatment conditions produces dftotal = 2

4

. For this ANOVA, what is the value of dfwithin?

Answer

a.

b.

c.

d.

3

2

21

22

Question 3

 

A researcher uses analysis of variance to test for mean differences among four treatments with a sample of n = 6 in each treatment. The F-ratio for this analysis would have what df values?

Answer

a.

b.

c.

d.

df = 3, 1

5

df = 4, 24

df = 3, 5

df = 3, 20

Question 4

 

For an analysis of variance comparing four treatments, 

MS

between = 12. What is the value of 

SS

between?

Answer

a.

b.

c.

d.

3

4

4

8

36

Question 5

 

An analysis of variance produces SSwithin = 40 and MSwithin = 

10

. In this analysis, how many treatment conditions are being compared?

Answer

a.

4

b.

c.

d.

5

50

30

Question 6

 

An analysis of variance comparing three treatment conditions produces dftotal = 24. For this ANOVA, what is the value of dfbetween?

Answer

a.

2

b.

3

c.

22

d.

21

Question

7

 

An independent-measures research study compares three treatment conditions using a sample of n = 5 in each treatment. For this study, the three sample totals are, T1 = 5, T2 = 10, and T3 = 

15

. What value would be obtained for SSbetween?

Answer

a.

b.

5

c.

d.

15
1
10

Question 8

 

An independent-measures research study compares three treatment conditions using a sample of n = 5 in each treatment. For this study, the three sample totals are, T1 = 5,  T2 = 10, T3 = 15, and 2 = 75 for the entire set of scores. What value would be obtained for SStotal?

Answer

a.

15

b.

5

c.

10

d.

1

Question 9

 

The following table shows the results of an analysis of variance. Based on this table, what is the value for ?2, the percentage of variance accounted for?

 

2

21

4

 

 

 

Source

SS df MS

Between

16

8

F = 2.00

Within

84

Total

100

23

Answer

a.

b.

c.

d.

16/100

16/18

8

4/10

0

4/10

Question 10

 

The following table shows the results of an analysis of variance comparing two treatment conditions with a sample of n = 11 participants in each treatment. Note that several values are missing in the table. What is the missing value for the F-ratio?

Source

SS

df

MS

 

Between

xx

Within

xx

xx

xx

 

 

 

xx

14

F = xx

Total

1

54

xx

Answer

a.

b.

2

c.

d.

14

28

7

Question 11

 

An analysis of variances produce SSbetween = 20, SSwithin = 30, and an F-ratio with df = 2, 15. For this analysis, what is the F-ratio?

Answer

a.

b.

c.

d.

30/20 = 1.50

20/30 = 0.67

10/2 = 5.00

2/10 = 0.20

Question 12

 

An experiment compares three treatment conditions with a separate sample of n = 10 in each treatment. If the data are analyzed with ANOVA, the analysis would have dftotal = _____.

Answer

a.

b.

28

c.

d.

30

29

27

Question 13

 

An independent-measures research study compares three treatment conditions using a sample of n = 10 in each treatment. For this study, the three samples have SS1= 10,  SS2 = 20, and SS3 = 15. What value would be obtained for MSwithin?

Answer

a.

b.

c.

d.

45/27

45/3

45/29

45/30

Question 14

 

For an F-ratio with df = 2, 10, the critical value for a hypothesis test using a = .05 would be _____.

Answer

a.

b.

c.

d.

99.40

4.10

19.39

7.56

Question 15

 

The following table shows the results of an analysis of variance comparing three treatment conditions with a sample of n = 10 participants in each treatment. Note that several values are missing in the table. What is the missing value for SStotal?

Source

SS

df

MS

 

Between

xx

xx

F = xx

Within

xx

xx

2

 

Total

xx

xx

 

 

20

Answer

a.

30

b.

c.

22

d.

54

74

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