Error message

User warning: The following module is missing from the file system: drupalcenter. For information about how to fix this, see the documentation page. in _drupal_trigger_error_with_delayed_logging() (line 1156 of /var/www/clients/client10/web67/web/includes/bootstrap.inc).

Optimization

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 !