'Running Observed Power test in R
Is it possible to calculate observed power of ANCOVA/ ANOVA test in R? I could not get it right using the 'pwr' package. Any advise on the right package to calculate observed power?
As an alternative, I ran the test in SPSS and the result is shown here:
The observed power results that I could not produce in R are the one in the red box.
In R, I have obtained all of the numbers (e.g. p-value, partial eta square, F score). They are similar with the ones in SPSS except for the observed power. Images below are the output from R for the similar test.
R output 1 - summary of the results
R output 2 - detailed view of the results
R output 3 - partial eta square of the independent variables in the model
Any help/ hint would be really appreciated!
Sources
This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.
Source: Stack Overflow
| Solution | Source |
|---|