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 (df) for this study? 5. What is the critical value of t for alpha level of .05 for your study (use table in PowerPoint)? 6. Was there a significant difference between the groups? Justify your answer.

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 (df) for this study? 5. What is the critical value of t for alpha level of .05 for your study (use table in PowerPoint)? 6. Was there a significant difference between the groups? Justify your answer.

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Description: How could I solve these problems? A researcher wanted to see whether there were any differences in the effectiveness of one-on-oneversus small-group cognitive behavior therapy for treating social anxiety disorder. 62 participants wererandomly assigne

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Question

How could I solve these problems?

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 (df) for this study?
5. What is the critical value of t for alpha level of .05 for your study (use table in PowerPoint)?
6. Was there a significant difference between the groups? Justify your answer.

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