1. For the repeated-measures ANVOVA, SSerror if found by_________. a. SStotal-SS

Question

1.      For the repeated-measures ANVOVA, SSerror if found by_________.

a. SStotal-SSbetween treatments

b. SSbetween treatmens-SSbetween subjects

c. SSbetween treatments-SSwithin

c. SSwithin-SSbetween subjects

2. The formula for df between subjects is

a. n-1

b. k-1

c. N-1

d. N-k

3.For a repeated-measures ANOVA, degrees of freedom for SSerror is___?

a. (N-k)-(n-1)

b. k-1

c.n-1

d.N-1

4. The appropriate denominator for the F-ratio for a repeated-measures ANOVA is..

a. variance within treatments

b. remaining variance when the variance between subjects is subtracted from the variance within treatments.

c. remaining variance when the variance within treatments is subtracted from the variance

d. variance between subjects

5. In a repeated-measures ANPVA, a P value is obtained by_____?

a. finding the sum of the scores for a participate in the study

b. N-k

c. summing the T values of all treatments

d. finding the sum of the scores for a treatment

6. In a repeated-measures ANOVA the SSwithin treatmens is divided into two components, What are they?

a. between subjects and error

b. between treatments and error

c. between subjects and between treatments

d. total variability and error

7. A repeated measures analysis of variance for a stud comparing three treatments with a sample of n=8 participants produces an F-ratio of F=6.60. for this result, which of the following is correct statistical decision?

a. reject the null hypothesis with alfa=.05 but not with alfa=.01

b. Reject the null hypothesis with either alfa=.05 or alfa=.01

c. There is not enough information to determine the correct decision .

d. Fail to reject the null hypothesis with either alfa=.05 or alfa= .01

8. A researcher is using a repeated-measures design to test for mean differences among four treatment conditions. If the data for this study consist of 10 scores in each treatment, then how many subjects participated in the study?

a. 40

b. 10

c. 4

d. none of the other options are correct

9. MSwithin treatment is the appropriate error term of the F ratio for a repeated-measures experiment.

a. true

b. false

10. The P totals are necessary to compute SSbetween treatments.

a. true

b. false

11. For a repeated-measures ANPVA,n=5, k=4, and error SS=24. Therefore MSerror= 2.

a. true

b. false

12. In a repeated-measures ANOVA, within-treatments SS is 48 and between-subjects SS is 12. Therefore, the error SS is 4.

a. true

b. false

13. For a repeated-measures study, df between treatments=3 and df total=27. This means 28 people participated in the study with 7 different people in each group.

a. true

b. false

THANK YOU, THANK YOU, THANK YOU!!!!!

Explanation / Answer

1) Answer: a. SStotal-SSbetween treatments

SS(within) - SS(subjects) is actually SS(error)

2. (k-1)

number of treatments - 1

3. a) ((N-k)*( N-1))

4) b. remaining variance when the variance between subjects is subtracted from the variance within treatments.

5) a. finding the sum of the scores for a participate in the study

6) a. between subjects and error

7) F(K-1, N-K) = F(2, 6) (6.60)= 0.0305(P-Value)

a. reject the null hypothesis with alfa=.05 but not with alfa=.01

8) a. 40

9) b. false

SS(within) - SS(subjects) is actually SS(error)

10) a. true

11) df = ((N-k)*( N-1)) = 4
MS = SS/df = 24/4 = 8

b. false

12) b. false , 48-12 = 36

13) k-1 = 3, N-1 = 27
k = 4, N = 28

a)true as 7 people can be divided into 4 groups making it 28 people

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