98.A researcher assigns 21 adolescents to rate the likability of a person described in a vignette as having one of three personality traits. An equal number of participants are assigned to each group. If obtF= 4.08 for this study, then what was the decision at a .05 level of significance for a one-way between-subjects ANOVA?A)Reject the null hypothesis.B)Retain the null hypothesis.C)There is not enough information to answer this question.

99.A researcher computes the following one-way between-subjects ANOVA table. State thedecision at a .05 level of significance. (Hint: Complete the table first.)Source of VariationSSdfMSFBetween groups324Within groups (error)45Total122

100.In a study with three groups and 13 participants in each group, the sum of squares for the within-groups source of variation is 18. What is the value for the mean square within-groups in this study?

101.When the variability attributed to between-groups is equal to the variability attributed toerror, then the value of the test statistic for a one-way between-subjects ANOVA is,

102.Following a significant one-way between-subjects ANOVA in which k> 2, what is the next appropriate step?A)Summarize the data; no further tests are required.Page 19

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B)Interpret the data; no further tests are required.C)Conduct post hoc tests.D)both A and B

103.Which of the following is not a post hoc test for a one-way between-subjects ANOVA?

104.Which of the following post hoc tests is associated with the least power to detect an effect?

105.Post hoc tests are computed