In my research on effective use of Large Scale Interventions, I developed an evaluation instrument. It is based on audit methods used to assess quality management systems. The ‘norm’, the set of quality criteria, has been built by making a synthesis of existing evidence from experience and theory. Read more in my book Building an evidence based practical guide to Large Scale Interventions. Towards sustainable organisational change with the whole system. If you want to evaluate a Large Scale Intervention process, or another complex intervention for organisational change, this method might be of use. The additional forms with audit questions, score tables and overview charts are available for free, see evaluation of effectiveness.