Phase I trials identify the maximum tolerated doses (MTDs) that could be tested in future trials. In practice, sample size estimate for phase I trials will allow investigators to allocate appropriate ...

Course TopicsPower analyses and sample size calculations are important parts of many research projects. Often, before data are even collected, it is necessary to calculate and justify the required ...

Donut and pie charts allow grouping and subgrouping. Grouping creates two or more separate pie or donut charts that display in rows or columns on one graph. Subgrouping creates a separate ring of ...

Sample Size Neglect is a cognitive bias studied by Amos Tversky and Daniel Kahneman. It consists of drawing false conclusions from statistical information, due to having not considered the effects ...