R-SABE and ABEL versus Blood Volume [Design Issues]
❝ Hi Helmut! Do you believe that I still can't access the forum via my work computer?
If you tell…
❝ That's a unsolved mystery!
It’s easier to be blacklisted than to get out of the trap. Can you e-mail your office PC’s IP again?
❝ PASS gives, for example, a result of 260 subjects to achieve 80% power with a ISCV of 40% and a true ratio of 95%, if I'm not mistaken... It's not very practical.
Confirmed:
library(PowerTOST)
sampleN.TOST(CV=0.4, design="2x4x2")
+++++++++++ Equivalence test - TOST +++++++++++
Sample size estimation
-----------------------------------------------
Study design: Balaam's (2x4x2)
log-transformed data (multiplicative model)
alpha = 0.05, target power = 0.8
BE margins = 0.8 ... 1.25
Null (true) ratio = 0.95, CV = 0.4
Sample size (total)
n power
260 0.805585
Dif-tor heh smusma 🖖🏼 Довге життя Україна!
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Helmut Schütz
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The quality of responses received is directly proportional to the quality of the question asked. 🚮
Science Quotes
Complete thread:
- R-SABE and ABEL versus Blood Volume Lucas 2015-08-11 16:06 [Design Issues]
- R-SABE and ABEL versus Blood Volume Helmut 2015-08-11 16:41
- R-SABE and ABEL versus Blood Volume Lucas 2015-08-11 17:04
- R-SABE and ABEL versus Blood VolumeHelmut 2015-08-11 17:31
- R-SABE and ABEL versus Blood Volume Lucas 2015-08-11 18:26
- R-SABE and ABEL versus Blood VolumeHelmut 2015-08-11 17:31
- R-SABE and ABEL versus Blood Volume Lucas 2015-08-11 17:04
- R-SABE and ABEL versus Blood Volume Helmut 2015-08-11 16:41