Cohen’s d Effect Size in Excel
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- Опубликовано: 22 авг 2024
- This video shows Dr. Evan Matthews explaining how to calculate a Cohen's d effect size that would accompany a t-test comparison. In this video this is done within an Excel spreadsheet. This video is part of a playlist of videos showing how to set up a large research spreadsheet.
Cohen's d Formula for Excel Used in Video:
=ABS([Group1Average]-[Group2Average])/SQRT(((([Group1SD]*[Group1SD])+( [Group2SD]*[Group2SD]))/2))
Cohen's d Effect Size Interpretation
A value of 0.2 represents a small effect size.
A value of 0.5 represents a medium effect size.
A value of 0.8 represents a large effect size.
Cohen J. Statistical Power Analysis for the Behavioral Sciences. 2nd. Mahwah: Lawrence Erlbaum Associates; 1988. doi.org/10.432... 03771587
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Well done. Useful, concise video.
Thank you!