Log in
RegisterType 1: no interim power (NL?) [Two-Stage / GS Designs]
Dear Helmut,
If not, use
!
Note: The results are totally equal to
BTW: This n2=2 at minimum is totally incomprehensible to me. One of the arguments was if not used alpha will be inflated. Seems you have shown that the opposite is true.
❝ Bonus question: Is interim power acceptable for “type 1” TSDs?
If not, use
power.2stage.fC() with arguments (powerstep = FALSE, method="B", fClower=0, ...) and simsalabim interim power has vanished !Note: The results are totally equal to
powerstep = TRUE since this step is now substitutionally done (implicitly) by the sample size estimation step.BTW: This n2=2 at minimum is totally incomprehensible to me. One of the arguments was if not used alpha will be inflated. Seems you have shown that the opposite is true.
—
Regards,
Detlew
Regards,
Detlew
Complete thread:
- Type 1: n2=2 (EMA), no interim power (NL?) Helmut 2015-02-13 13:29
![[Mix]](https://static.bebac.at/img/mix.png "open in Mix view")
- Type 1: no interim power (NL?)d_labes 2015-02-13 14:53
- Type 1: no interim power (NL?) Helmut 2015-02-13 15:22
- Type 1: no interim power (NL?)d_labes 2015-02-13 14:53
Ing. Helmut Schütz