Answered: In looking at different effect sizes,…

Ciccarelli: Psychology_5 (5th Edition)

5th Edition

ISBN:9780134477961

Author:Saundra K. Ciccarelli, J. Noland White

Publisher:Saundra K. Ciccarelli, J. Noland White

Chapter1: The Science Of Psychology

Section: Chapter Questions

Problem 1TY

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In looking at different effect sizes, what might it mean if a difference between two groups is statistically significant but the effect size is small? If you were on a working committee looking at two different treatment methods for an anxiety disorder and you found these results, what might you talk about with your colleagues?

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When a difference between two groups is statistically significant but the effect size is small, it means that although there is evidence of a difference between the groups, the difference may not be practically significant. In other words, the observed effect may be statistically significant but not large enough to have practical implications or a meaningful impact in the real world.
If you were on a working committee looking at two different treatment methods for an anxiety disorder and you found these results, it would be important to have a discussion with your colleagues about the practical implications of the findings. You might discuss whether the small effect size is sufficient to justify a change in treatment approach, or whether additional research is needed to further investigate the effectiveness of the treatments.