Define statistical power List the potential consequences of doing a study that has ... State the factors that affect power and what factors we have to specify to do a sample size calculation. Some ...

Lukas Lengersdorff and Claus Lamm discuss three misconceptions that stand in the way of an informed discussion.

Basic concepts in hypothesis testing, including effect sizes, type I and type II errors, calculation of statistical power, non-centrality parameter, and applications of these concepts to twin studies.