1 A researcher computes a 2 4 betweensubjects ANOVA What ar

1. A researcher computes a 2 × 4 between-subjects ANOVA. What are the degrees of freedom for Factor B for this study?

a. 2

b. 3

c. 4

d. 8

2. A researcher records the amount of time spent studying by male and female college students in a dormitory versus a library setting. Different participants were observed in each group. What type of statistical design is appropriate for this study?

a. one-way between-subjects ANOVA

b. one-way within-subjects ANOVA

c. two-way between-subjects ANOVA

d. both B and C

3. Not including the total variation, how many sources of variation are measured in a two-way between-subjects ANOVA?

a. 2

b. 3

c. 4

d. 5

4. Which of the following is a reason why it can be necessary to include two factors in the same statistical design?

a. you want to observe two groups in the same statistical design

b. you want to analyze the main effects of a factor

c. your hypothesis may require that you observe two factors

d. you want to minimize the number of participants observed in your study

5. 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

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

Sol)

1) A researcher computes a 2 × 4 between-subjects ANOVA. What are the degrees of freedom for Factor B for this study.

Ans: the degrees of freedom for Factor B for this study is 4-1 =3

2) A researcher records the amount of time spent studying by male and female college students in a dormitory versus a library setting?

Sol) here treatments are genders and library setting is blocks

we use ANova two way

3)how many sources of variation are measured in a two-way between-subjects ANOVA?

Sol) 4-1 =3 df

4)

a. you want to observe two groups in the same statistical design