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Avoid under or overpowered trials. Use sample size re-estimation to explore pre-trial assumptions and adjust the sample size based on your interim results.
Sample Size Output Statement
After you've completed your sample size determination in nQuery, you will often wish to communicate your results with regulatory agencies or funding bodies. To assist you in this nQuery provides the output statement.
With hundreds of tables for different study designs and tests you can be confident that you will have a validated sample size determination method appropriate for your study. In our sample size software, each sample size table is thoroughly tested and fully validated against the latest regulatory requirements.
连续再评价法 基于模型的剂量测量设计
N of 1 Trials 随机试验机在个体病人中的应用
Gamma回归 事故率的Gamma回归样本量
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