This guide addresses commonly asked questions about how to approach evaluation of quality improvement in health care. It seeks to answer ten core questions:
- Why do an evaluation?
 - What are the different types of evaluation?
 - What are the design considerations for an evaluation? 
 - What are we comparing our intervention with?
 - How does evaluation differ from other forms of measurement? 
 - What practical issues should we consider?
 - When should we start and finish an evaluation?
 - How do we cope with changes in the intervention when the evaluation is underway? 
 - Should we do the evaluation ourselves or commission an external team?
 - How do we communicate evaluation findings?