Discard all questionable data, use the remaining data, and retrain the staff.
Discarding all questionable data is a somewhat costly but necessary decision. These are some possible outcomes:
|  | The loss of data from the data collection errors is minimal, and fortunately does not hinder the investigation. A meeting of the trainers is called to discuss how to improve current training procedures.
|  | The loss of data does cause moderate concern among the investigators, somewhat limiting the investigation of the drug's efficacy. A meeting of the trainers is called to discuss how to improve current training procedures.
|  | The loss of data significant, and compromises the investigation. Investigators must decide how to proceed with this situation. In addition, a meeting of the trainers is called to discuss how to improve current training procedures.