Log in
RegisterSample size, alpha, beta, beta/2 and that all [General Statistics]
Dear Astea
Don't understand your question here.
Owen's Q functions are a way of calculating the power exact. For the sample size 'brute force' as described above is nevertheless necessary since no exact closed form result for the sample size itself is known.
And this brute force can be shortened in using a reasonable start value. PowerTOST uses some sort of Zhang's formula to that end, regardless of the power calculation method used, "exact", "nct" or "shifted".
❝ ...
❝ ❝ These attempts are only useful for obtaining a reasonable start value for 'brute force'. As such they are used within PowerTOST.
❝ Does exact Owen's method in general do the same?
Don't understand your question here.
Owen's Q functions are a way of calculating the power exact. For the sample size 'brute force' as described above is nevertheless necessary since no exact closed form result for the sample size itself is known.
And this brute force can be shortened in using a reasonable start value. PowerTOST uses some sort of Zhang's formula to that end, regardless of the power calculation method used, "exact", "nct" or "shifted".
—
Regards,
Detlew
Regards,
Detlew
Complete thread:
- MSE calculation jag009 2012-09-13 17:39
![[Mix]](https://static.bebac.at/img/mix.png "open in Mix view")
- MSE calculation from CI of 3x3x3 study d_labes 2012-09-14 09:43
- Oops! Helmut 2012-09-14 14:31
- Oops? One or two-tailed? ElMaestro 2012-09-14 15:48
- One or two-tailed? d_labes 2012-09-17 09:57
- One or two-tailed? Astea 2015-02-05 01:20
- Sample size, alpha, beta, beta/2 and that all d_labes 2015-02-05 09:31
- Sample size, alpha, beta, beta/2 and that all Astea 2015-02-07 12:53
- Sample size, alpha, beta, beta/2 and that alld_labes 2015-02-07 16:22
- Sample size, alpha, beta, beta/2 and that all Astea 2015-02-07 12:53
- Sample size, alpha, beta, beta/2 and that all d_labes 2015-02-05 09:31
- One or two-tailed? Astea 2015-02-05 01:20
- One or two-tailed? d_labes 2012-09-17 09:57
- Oops? One or two-tailed? ElMaestro 2012-09-14 15:48
- MSE calculation from CI of 3x3x3 study jag009 2012-09-24 20:12
- MSE calculation from CI of 4x4x4 study d_labes 2012-09-25 10:40
- MSE calculation from CI of 4x4x4 study jag009 2012-09-25 14:59
- MSE calculation from CI of 3x3x3 study ElMaestro 2015-02-05 12:57
- MSE calculation from CI of 4x4x4 study d_labes 2012-09-25 10:40
- Oops! Helmut 2012-09-14 14:31
- MSE calculation from CI of 3x3x3 study d_labes 2012-09-14 09:43
Ing. Helmut Schütz