1 The following is a summary of a oneway betweensubjects ANO

1. The following is a summary of a one-way between-subjects ANOVA: F(2, 37) = 3.42, p < .05, ² = .12. How many participants were observed in this study?

a. 12

b. 37

c. 40

d. 39

2. A researcher assigned participants (n = 8 per group) to read vignettes describing a person engaging in either a helpful, hurtful, or neutral act. Different participants were assigned to each group and asked to rate how positively they viewed the person described in the vignette. What is the critical value for the one-way between-subjects ANOVA at a .05 level of significance?

a. 3.07

b. 3.44

c. 3.47

d. 4.32

3. Which of the following is an assumption for computing a one-way between-subjects ANOVA?

a. The population being sampled from is normally distributed.

b. Participants were selected to participate using a random procedure.

c. One observation has no effect on the likelihood of another observation.

d. all of the above

4. A researcher divides participants into groups that will engage in low, moderate, or intense levels of exercise. The total calories consumed by participants following the exercise are then recorded. What type of statistical design is appropriate for this study?

a. a related samples t test

b. a two-independent sample t test

c. a one-way between-subjects ANOVA

d. both B and C

5. Computing a one-way between-subjects ANOVA is appropriate when

a. different participants are observed one time in each of two or more groups for one factor

b. the same participants are observed in each of two or more groups for one factor

c. the levels of one or more factors are manipulated

d. all of the above

6. A researcher conducts a study in which k = 5 and N = 80. What are the degrees of freedom between-groups for the one-way between-subjects ANOVA?

a. 4

b. 5

c. 75

d. 395

7. How does omega-squared for the one-way between-subjects ANOVA correct for the fact that eta-squared tends to be a biased estimate of effect size?

a. It corrects for the size of error by including MS_E in the formula.

b. It includes the degrees of freedom between groups (df_BG ) in the formula.

c. It accounts for the number of groups that were observed.

d. all of the above

Solution