power analysis
Dear all,
I am trouble with power analysis. I have a 2 * 3 within factor design and want to used the repeated-measure ANOVA to analyze the data. How can I calculate the sample size？
Usually I used Gpower but I am not sure I do it in a right way. If I want to find the minimal subject numbers to detect the interaction, with the power of 0.9 and middle effect size, I will put the parameter as below：
I am most unsure about the number of measurements, I put 5 because (2*3-1).
And I choose repeated-measure, within factor is right? Or do you have any other software or web can do the power analysis. I am very thankful if you can answer my question or provide me something related to read.
Thanks!
Comments
Hi @tong,
This forum is about Open Sesame Web... Your message relates to GPower...
I suggest you check the help available on GPower's website:
Good luck!
Fabrice.
@Fab thank you!
Hi @tong ,
Perhaps the people from the JASP part of our forum can help you out as well:
Cheers,
Lotje
Did you like my answer? Feel free to
We don't offer power analyses just yet, but it is on its way!
E.J.