Each project has a frame. Time, Money, Objectives, Risks, Chances are tailored to the needs of our costomer.

The most important question: How many subjects do we need, how great is the study?



To produce reliable data (have sufficient study power) - the required number of participants (observations, cases) can be calculated from preliminary data. This saves time and money. Either data are available before start, or we realize a pilot phase and perform an interim analysis.

Each project plan should be optimized by "statistical sample size".



We calculate the required sample sizes,

either with previous data from a pilot project or based on an estimate !