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yashokrajv ☆ 2009-08-09 12:44 (6152 d 14:03 ago) Posting: # 4022 Views: 12,425 |
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Dear all, Is there a way to calculate the Intrasubject CV (ISCV) when we know the T/R ratio and confidence interval (power 0.8; level of significance 5%). Since, many a times these information available in literature except for ISCV, would be useful to compare with our data. Thanks in advance. Ashok Edit: Category changed. [Helmut] |
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Helmut ★★★   Vienna, Austria, 2009-08-09 15:52 (6152 d 10:56 ago) @ yashokrajv Posting: # 4023 Views: 10,841 |
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Dear Ashok! ❝ Is there a way to calculate the Intrasubject CV (ISCV) when we know the ❝ T/R ratio and confidence interval (power 0.8; level of significance 5%). Yes. You don't need the power in such a calculation - only the CI and the study's sample size (preferably the number of subjects / sequence also). T/R is optional. See these threads:David Dubins' FARTSSIE has an option to calculate CVintra from the point estimate and the CI for balanced (=equal number of subjects in each sequence) studies: Sheet [Bioequivalence, Crossover], Button ISV from Published Point Estimate and CI.If you don't trust in M$-Excel, you can do a manual calculation as well - see one of my lectures (slides 12-15). — Dif-tor heh smusma 🖖🏼 Довге життя Україна! ![[image]](https://static.bebac.at/pics/Blue_and_yellow_ribbon_UA.png) Helmut Schütz ![[image]](https://static.bebac.at/img/CC by.png) The quality of responses received is directly proportional to the quality of the question asked. 🚮 Science Quotes |
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yashokrajv ☆ 2009-08-11 10:33 (6150 d 16:14 ago) @ Helmut Posting: # 4035 Views: 10,252 |
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Dear HS, Thanks a lot. The Excel sheet is working wonderfully well! Many thanks to Dr. Lenth and Dr. Dubins (who created this program). regards ashok |
Ing. Helmut Schütz