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
1184 of
/var/www/clients/client10/web67/web/includes/bootstrap.inc).
RCT
RCTs - Randomised Controlled Trials
For a randomised controlled study the participants are allocated to two or more groups at random (to avoid any possible investigator or other bias). To randomize your sample is "state of the art" in studies to show effectiness of any treatment.
