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Answer the following questions. Show all of your work. A researcher wanted to see whether there were any differences in the effectiveness of one-on-one versus small-group cognitive behavior therapy for treating social anxiety disorder. 62 participants were randomly assigned to the two conditions, resulting in 31 per group. The mean and standard deviation for the one-on-one group were 14.6 and 5.4, respectively. The mean and standard deviation for the small group condition were 12.7 and 6.8, respectively. 1. Is this a between-groups or within-groups design? 2. What is the value of t? 3. Should you use a 1-tailed or 2-tailed test? 4. What are the degrees of freedom [dfl for this study? 5. What is the critical value oft for alpha level of .05 for your study {use table in PowerPoint}? 6. Was there a signicant difference between the groups? Justify your