well explained! how is this connected to power calculations? can you please explain this: "The power calculations were originally performed for a non-inferiority study concept assuming 70% effectiveness for CBT and 85% for TFT, with 80% strength and 10% CI and an accepted 10% delta, yielding 34 patients in each therapy group. As both the criteria for estimating effectiveness for TFT, and the non-inferiority margin for scores on the ADIS avoidance scale are highly uncertain, we present our findings as a conventional superiority trial with two-sided statistical tests."
For this study, authors originally did power calculation for non-inferiority study but later design was changed to superiority study. Whatever is the study design (superiority, non-inferiority or equivalence), power calculation is necessary. Usually power is considered 80%. I hope, I could explain your question. Sorry for delay in answering.
well explained! how is this connected to power calculations? can you please explain this:
"The power calculations were originally performed for a non-inferiority study concept assuming 70% effectiveness for CBT and 85% for TFT, with 80% strength and 10% CI and an accepted 10% delta, yielding 34 patients in each therapy group. As both the criteria for estimating effectiveness for TFT, and the non-inferiority margin for scores on the ADIS avoidance scale are highly uncertain, we present our findings as a conventional superiority trial with two-sided statistical tests."
For this study, authors originally did power calculation for non-inferiority study but later design was changed to superiority study.
Whatever is the study design (superiority, non-inferiority or equivalence), power calculation is necessary. Usually power is considered 80%.
I hope, I could explain your question.
Sorry for delay in answering.
Keep going sir 💪
Nice sir, thanku so much 👍
👍👍👍👍👍🙏
terrible audio