1 A researcher computes a 2 3 betweensubjects ANOVA in whic

1. A researcher computes a 2 × 3 between-subjects ANOVA in which 6 participants are observed in each cell. What are the degrees of freedom error for this study?

a. 71

b. 60

c. 30

d. 36

2. A researcher computes two 2 × 2 between-subjects ANOVAs. In Study 1, he observes 8 participants in each cell; in Study 2, he observes 12 participants in each cell. Which study is associated with a larger value for degrees of freedom for the A x B interaction?

a. Study 1

b. Study 2

c. Both studies have the same degrees of freedom for the A × B interaction.

3. A researcher computes a 3 × 5 between-subjects ANOVA. What are the degrees of freedom for the A × B interaction for this study?

a. 2

b. 4

c. 8

d. 15

4. The denominator of the test statistic for the main effects and interaction in a two-way between-subjects ANOVA

a. is equal to 0

b. is equal to mean square error

c. is equal to mean square between-groups

d. is a measure of variance for differences between groups

5. An estimate of effect size with the two-way ANOVA is typically reported for:

a. a significant main effect test

b. a significant interaction test

c. both A and B

d. None; effect size is not reported for the two-way ANOVA.

6. To summarize any type of two-way ANOVA using APA format, we report each of the following except the,

a. test statistic

b. critical values

c. p value

d. degrees of freedom

7. A ____ is the combination of one level from each factor.

a. factor

b. cell

c. main effect

d. interaction

Solution

1) c. 30

2 ) c. Both studies have the same degrees of freedom for the A × B interaction.

4) c. is equal to mean square between-groups

5) a. a significant main effect test