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1. A one-factor ANOVA for independent samples conducted on 4 experimental groups, with n = 8...

1. A one-factor ANOVA for independent samples conducted on 4 experimental groups, with n = 8 participants in each group, produces the following partial outcomes: SSbetween = 36, SSwithin = 84. For this analysis, what is the computed F statistic?

  • A. F = 3

  • B. F = 12

  • C. F = 8

  • D. F = 6

  • E. F = 21

  • F. F = 4

2. A researcher reports an outcome of one factor ANOVA for independent samples as F(2, 36) = 5.22. Based on this outcome, what is the correct statistical decision?

  • A. Reject the null hypothesis with p < .05 but fail to reject with p < .01.

  • B. Fail to reject the null hypothesis with p < .05 but reject with p < .01.

  • C. Reject the null hypothesis with either, p < .05 or p < .01.

  • D. Fail to reject the null hypothesis with either, p < .05 or p < .01

3.

The summary table below shows the computational outcomes of one-factor ANOVA for independent samples.     

                  Source SS    df     MS

               Between 16      2       8       F = 3.20

                   Within 120    48    2.5                                                            

                      Total 136    50                                                                        

What is the correct APA format of reporting the F statistic from this one-factor ANOVA? Assume p < .05 for the hypothesis test.

  • A. F(2, 48) = 3.20, p > .05

  • B. F(2, 50) = 5.08, p > .05

  • C. F(2, 48) = 3.20, p < .05

  • D. F(2, 48) = 3.19, p < .05

  • E. F(2, 50) = 3.20, p < .05

  • F. F(2, 48) = 3.19, p > .05

4. In one-factor ANOVA for independent samples, which of the following reflects a random variability of scores in the samples?

  • A. MSbetween

  • B. MStotal

  • C. MSwithin

  • D. A & B

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